diff --git a/ChangeLog b/ChangeLog
index 3214a921..100d044a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,10 +1,11 @@
 10/12/17 started 8.6.1
-- stop window new/free cycling .. faster zoom out on large images in nip2
+- stop window new/free cycling .. faster zoom out on some large images in nip2
 - fix some compiler warnings
 - remove the 64-image limit on bandary operations
 - better version date [bmwiedemann]
 - bump wrapper script version [bgilbert]
-- fix a memleak with an error during jpeg buffer write [lovell]
+- fix a memleak on error during jpeg buffer write [lovell]
+- fix misspelling of IPTC as IPCT [lovell]
 
 15/4/17 started 8.6.0
 - supports fits images with leading non-image HDUs, thanks benepo
diff --git a/libvips/foreign/jpeg2vips.c b/libvips/foreign/jpeg2vips.c
index 1bca9fb7..6fcd4a11 100644
--- a/libvips/foreign/jpeg2vips.c
+++ b/libvips/foreign/jpeg2vips.c
@@ -52,7 +52,7 @@
  * 	- attach rationals as a/b, don't convert to double
  * 21/11/12
  * 	- don't insist exif must have data
- * 	- attach IPCT data (app13), thanks Gary
+ * 	- attach IPTC data (app13), thanks Gary
  * 6/7/13
  * 	- null-terminate exif strings, thanks Mike
  * 24/2/14
@@ -468,11 +468,11 @@ read_jpeg_header( ReadJpeg *jpeg, VipsImage *out )
 			break;
 
 		case JPEG_APP0 + 13:
-			/* Possible IPCT data block.
+			/* Possible IPTC data block.
 			 */
 			if( p->data_length > 5 &&
 				vips_isprefix( "Photo", (char *) p->data ) &&
-				attach_blob( out, VIPS_META_IPCT_NAME,
+				attach_blob( out, VIPS_META_IPTC_NAME,
 					p->data, p->data_length ) )
 				return( -1 );
 			break;
@@ -703,7 +703,7 @@ static int
 vips__jpeg_read( ReadJpeg *jpeg, VipsImage *out, gboolean header_only )
 {
 	/* Need to read in APP1 (EXIF metadata), APP2 (ICC profile), APP13
-	 * (photoshop IPCT).
+	 * (photoshop IPTC).
 	 */
 	jpeg_save_markers( &jpeg->cinfo, JPEG_APP0 + 1, 0xffff );
 	jpeg_save_markers( &jpeg->cinfo, JPEG_APP0 + 2, 0xffff );
diff --git a/libvips/foreign/jpegload.c b/libvips/foreign/jpegload.c
index dfe5b868..c0c5319d 100644
--- a/libvips/foreign/jpegload.c
+++ b/libvips/foreign/jpegload.c
@@ -368,8 +368,8 @@ vips_foreign_load_jpeg_buffer_init( VipsForeignLoadJpegBuffer *buffer )
  * #VIPS_META_ICC_NAME. You need to use something like 
  * vips_icc_import() to get CIE values from the file. 
  *
- * EXIF metadata is attached as #VIPS_META_EXIF_NAME, IPCT as
- * #VIPS_META_IPCT_NAME, and XMP as #VIPS_META_XMP_NAME.
+ * EXIF metadata is attached as #VIPS_META_EXIF_NAME, IPTC as
+ * #VIPS_META_IPTC_NAME, and XMP as #VIPS_META_XMP_NAME.
  *
  * The int metadata item "jpeg-multiscan" is set to the result of 
  * jpeg_has_multiple_scans(). Interlaced jpeg images need a large amount of
diff --git a/libvips/foreign/jpegsave.c b/libvips/foreign/jpegsave.c
index 17732f07..d93cf5b2 100644
--- a/libvips/foreign/jpegsave.c
+++ b/libvips/foreign/jpegsave.c
@@ -450,7 +450,7 @@ vips_foreign_save_jpeg_mime_init( VipsForeignSaveJpegMime *mime )
  * in jpg parlance). These files may be better for display over a slow network
  * conection, but need much more memory to encode and decode. 
  *
- * If @strip is set, no EXIF data, IPCT data, ICC profile or XMP metadata is 
+ * If @strip is set, no EXIF data, IPTC data, ICC profile or XMP metadata is 
  * written into the output file. 
  *
  * If @no_subsample is set, chrominance subsampling is disabled. This will 
@@ -505,7 +505,7 @@ vips_foreign_save_jpeg_mime_init( VipsForeignSaveJpegMime *mime )
  * the file. #VIPS_META_RESOLUTION_UNIT is used to set the EXIF resolution
  * unit. #VIPS_META_ORIENTATION is used to set the EXIF orientation tag. 
  *
- * IPCT as #VIPS_META_IPCT_NAME and XMP as #VIPS_META_XMP_NAME
+ * IPTC as #VIPS_META_IPTC_NAME and XMP as #VIPS_META_XMP_NAME
  * are coded and attached. 
  *
  * See also: vips_jpegsave_buffer(), vips_image_write_to_file().
diff --git a/libvips/foreign/tiff2vips.c b/libvips/foreign/tiff2vips.c
index 8330d3e9..bd9688b4 100644
--- a/libvips/foreign/tiff2vips.c
+++ b/libvips/foreign/tiff2vips.c
@@ -158,7 +158,7 @@
  * 	- close the read down early for a header read ... this saves an
  * 	  fd during file read, handy for large numbers of input images 
  * 29/9/15
- * 	- load IPCT metadata
+ * 	- load IPTC metadata
  * 	- load photoshop metadata
  * 21/12/15
  * 	- load TIFFTAG_IMAGEDESCRIPTION
@@ -1283,7 +1283,7 @@ rtiff_set_header( Rtiff *rtiff, VipsImage *out )
 			(VipsCallbackFn) vips_free, data_copy, data_length );
 	}
 
-	/* Read any IPCT metadata.
+	/* Read any IPTC metadata.
 	 */
 	if( TIFFGetField( rtiff->tiff, 
 		TIFFTAG_RICHTIFFIPTC, &data_length, &data ) &&
@@ -1291,7 +1291,7 @@ rtiff_set_header( Rtiff *rtiff, VipsImage *out )
 		data_length ) {
 		void *data_copy;
 
-		/* For no very good reason, libtiff stores IPCT as an array of
+		/* For no very good reason, libtiff stores IPTC as an array of
 		 * long, not byte.
 		 */
 		data_length *= 4;
@@ -1299,7 +1299,7 @@ rtiff_set_header( Rtiff *rtiff, VipsImage *out )
 		if( !(data_copy = vips_malloc( NULL, data_length )) ) 
 			return( -1 );
 		memcpy( data_copy, data, data_length );
-		vips_image_set_blob( out, VIPS_META_IPCT_NAME, 
+		vips_image_set_blob( out, VIPS_META_IPTC_NAME, 
 			(VipsCallbackFn) vips_free, data_copy, data_length );
 	}
 
diff --git a/libvips/foreign/tiffload.c b/libvips/foreign/tiffload.c
index 081a4cc3..f7aeaef9 100644
--- a/libvips/foreign/tiffload.c
+++ b/libvips/foreign/tiffload.c
@@ -361,7 +361,7 @@ vips_foreign_load_tiff_buffer_init( VipsForeignLoadTiffBuffer *buffer )
  *
  * Any ICC profile is read and attached to the VIPS image as
  * #VIPS_META_ICC_NAME. Any XMP metadata is read and attached to the image
- * as #VIPS_META_XMP_NAME. Any IPCT is attached as #VIPS_META_IPCT_NAME. The
+ * as #VIPS_META_XMP_NAME. Any IPTC is attached as #VIPS_META_IPTC_NAME. The
  * image description is
  * attached as #VIPS_META_IMAGEDESCRIPTION. Data in the photoshop tag is 
  * attached as #VIPS_META_PHOTOSHOP_NAME.
diff --git a/libvips/foreign/tiffsave.c b/libvips/foreign/tiffsave.c
index 553f54c2..09b55615 100644
--- a/libvips/foreign/tiffsave.c
+++ b/libvips/foreign/tiffsave.c
@@ -539,7 +539,7 @@ vips_foreign_save_tiff_buffer_init( VipsForeignSaveTiffBuffer *buffer )
  * The value of #VIPS_META_XMP_NAME is written to
  * the XMP tag. #VIPS_META_ORIENTATION (if set) is used to set the value of 
  * the orientation
- * tag. #VIPS_META_IPCT (if set) is used to set the value of the IPCT tag.  
+ * tag. #VIPS_META_IPTC (if set) is used to set the value of the IPTC tag.  
  * #VIPS_META_PHOTOSHOP_NAME (if set) is used to set the value of the PHOTOSHOP
  * tag.
  *
diff --git a/libvips/foreign/vips2jpeg.c b/libvips/foreign/vips2jpeg.c
index cba26e04..d68af286 100644
--- a/libvips/foreign/vips2jpeg.c
+++ b/libvips/foreign/vips2jpeg.c
@@ -55,7 +55,7 @@
  * 	- optionally parse rationals as a/b
  * 	- update exif image dimensions
  * 21/11/12
- * 	- attach IPCT data (app13), thanks Gary
+ * 	- attach IPTC data (app13), thanks Gary
  * 2/10/13 Lovell Fuller
  * 	- add optimize_coding parameter
  * 	- add progressive mode
@@ -594,7 +594,7 @@ write_vips( Write *write, int qfac, const char *profile,
 			write_blob( write, 
 				VIPS_META_XMP_NAME, JPEG_APP0 + 1 ) ||
 			write_blob( write, 
-				VIPS_META_IPCT_NAME, JPEG_APP0 + 13 ) )
+				VIPS_META_IPTC_NAME, JPEG_APP0 + 13 ) )
 			return( -1 );
 
 		/* A profile supplied as an argument overrides an embedded 
diff --git a/libvips/foreign/vips2tiff.c b/libvips/foreign/vips2tiff.c
index b384df12..1350befe 100644
--- a/libvips/foreign/vips2tiff.c
+++ b/libvips/foreign/vips2tiff.c
@@ -154,7 +154,7 @@
  * 	- squash >128 rather than >0, nicer results for shrink
  * 	- add miniswhite option
  * 29/9/15
- * 	- try to write IPCT metadata
+ * 	- try to write IPTC metadata
  * 	- try to write photoshop metadata
  * 11/11/15
  * 	- better alpha handling, thanks sadaqatullahn
@@ -462,17 +462,17 @@ wtiff_embed_ipct( Wtiff *wtiff, TIFF *tif )
 	void *data;
 	size_t data_length;
 
-	if( !vips_image_get_typeof( wtiff->im, VIPS_META_IPCT_NAME ) )
+	if( !vips_image_get_typeof( wtiff->im, VIPS_META_IPTC_NAME ) )
 		return( 0 );
-	if( vips_image_get_blob( wtiff->im, VIPS_META_IPCT_NAME, 
+	if( vips_image_get_blob( wtiff->im, VIPS_META_IPTC_NAME, 
 		&data, &data_length ) )
 		return( -1 );
 
-	/* For no very good reason, libtiff stores IPCT as an array of
+	/* For no very good reason, libtiff stores IPTC as an array of
 	 * long, not byte.
 	 */
 	if( data_length & 3 ) {
-		g_warning( "%s", _( "rounding up IPCT data length" ) );
+		g_warning( "%s", _( "rounding up IPTC data length" ) );
 		data_length /= 4;
 		data_length += 1;
 	}
@@ -482,7 +482,7 @@ wtiff_embed_ipct( Wtiff *wtiff, TIFF *tif )
 	TIFFSetField( tif, TIFFTAG_RICHTIFFIPTC, data_length, data );
 
 #ifdef DEBUG
-	printf( "vips2tiff: attached IPCT from meta\n" );
+	printf( "vips2tiff: attached IPTC from meta\n" );
 #endif /*DEBUG*/
 
 	return( 0 );
diff --git a/libvips/include/vips/header.h b/libvips/include/vips/header.h
index b445428a..922f92ba 100644
--- a/libvips/include/vips/header.h
+++ b/libvips/include/vips/header.h
@@ -53,11 +53,11 @@ extern "C" {
 #define VIPS_META_XMP_NAME "xmp-data"
 
 /**
- * VIPS_META_IPCT_NAME:
+ * VIPS_META_IPTC_NAME:
  *
- * The name that read and write operations use for the image's IPCT data.
+ * The name that read and write operations use for the image's IPTC data.
  */
-#define VIPS_META_IPCT_NAME "ipct-data"
+#define VIPS_META_IPTC_NAME "iptc-data"
 
 /**
  * VIPS_META_PHOTOSHOP_NAME:
diff --git a/libvips/include/vips/vips7compat.h b/libvips/include/vips/vips7compat.h
index 762c46fa..95c94b72 100644
--- a/libvips/include/vips/vips7compat.h
+++ b/libvips/include/vips/vips7compat.h
@@ -41,6 +41,10 @@ extern "C" {
 /* Renamed types.
  */
 
+/* We have this misspelt in earlier versions :(
+ */
+#define VIPS_META_IPCT_NAME VIPS_META_IPTC_NAME 
+
 #define IM_D93_X0 VIPS_D93_X0 
 #define IM_D93_Y0 VIPS_D93_Y0 
 #define IM_D93_Z0 VIPS_D93_Z0