diff --git a/libvips/foreign/heifload.c b/libvips/foreign/heifload.c
index d15a81a3..27f48717 100644
--- a/libvips/foreign/heifload.c
+++ b/libvips/foreign/heifload.c
@@ -327,6 +327,7 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
 			(void) vips__exif_parse( out );
 	}
 
+#ifdef HAVE_HEIF_COLOR_PROFILE
 #ifdef DEBUG
 {
 	enum heif_color_profile_type profile_type = 
@@ -356,7 +357,6 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
 }
 #endif /*DEBUG*/
 
-#ifdef HAVE_HEIF_COLOR_PROFILE
 	/* FIXME should probably check the profile type ... lcms seems to be
 	 * able to load at least rICC and prof.
 	 */
@@ -469,7 +469,8 @@ vips_foreign_load_heif_header( VipsForeignLoad *load )
 
 	/* All pages must be the same size for libvips toilet roll images.
 	 */
-	if( vips_foreign_load_heif_set_page( heif, heif->page, heif->thumbnail ) )
+	if( vips_foreign_load_heif_set_page( heif, 
+		heif->page, heif->thumbnail ) )
 		return( -1 );
 	heif->page_width = heif_image_handle_get_width( heif->handle );
 	heif->page_height = heif_image_handle_get_height( heif->handle );
@@ -497,14 +498,18 @@ vips_foreign_load_heif_header( VipsForeignLoad *load )
 			heif_image_handle_get_width( heif->handle ) );
 		printf( "    height = %d\n", 
 			heif_image_handle_get_height( heif->handle ) );
-		printf( "    depth = %d\n", 
+		printf( "    has_depth = %d\n", 
 			heif_image_handle_has_depth_image( heif->handle ) );
+		printf( "    has_alpha = %d\n", 
+			heif_image_handle_has_alpha_channel( heif->handle ) );
 		printf( "    n_metadata = %d\n", 
 			heif_image_handle_get_number_of_metadata_blocks( 
 				heif->handle, NULL ) );
-		printf( "    colour profile type = %d\n", 
+#ifdef HAVE_HEIF_COLOR_PROFILE
+		printf( "    colour profile type = 0x%xd\n", 
 			heif_image_handle_get_color_profile_type( 
 				heif->handle ) );
+#endif /*HAVE_HEIF_COLOR_PROFILE*/
 	}
 #endif /*DEBUG*/
 
diff --git a/libvips/foreign/radiance.c b/libvips/foreign/radiance.c
index 2082ff4f..be56b322 100644
--- a/libvips/foreign/radiance.c
+++ b/libvips/foreign/radiance.c
@@ -1198,7 +1198,9 @@ vips__rad_load( const char *filename, VipsImage *out )
 
 	if( vips_image_generate( t[0], 
 		NULL, rad2vips_generate, NULL, read, NULL ) ||
-		vips_sequential( t[0], &t[1], "tile_height", 8, NULL ) ||
+		vips_sequential( t[0], &t[1], 
+			"tile_height", VIPS__FATSTRIP_HEIGHT, 
+			NULL ) ||
 		vips_image_write( t[1], out ) )
 		return( -1 );
 
diff --git a/libvips/foreign/vipspng.c b/libvips/foreign/vipspng.c
index 2d1cddfd..1062cf7f 100644
--- a/libvips/foreign/vipspng.c
+++ b/libvips/foreign/vipspng.c
@@ -690,7 +690,7 @@ png2vips_image( Read *read, VipsImage *out )
 				NULL, png2vips_generate, NULL, 
 				read, NULL ) ||
 			vips_sequential( t[0], &t[1], 
-				"tile_height", 8,
+				"tile_height", VIPS__FATSTRIP_HEIGHT, 
 				NULL ) ||
 			vips_image_write( t[1], out ) )
 			return( -1 );