diff --git a/libvips/foreign/magick.c b/libvips/foreign/magick.c
index 304809d7..06bd157c 100644
--- a/libvips/foreign/magick.c
+++ b/libvips/foreign/magick.c
@@ -48,6 +48,8 @@
 #include "pforeign.h"
 #include "magick.h"
 
+#if defined(HAVE_MAGICK6) || defined(HAVE_MAGICK7)
+
 /* ImageMagick can't detect some formats, like ICO, by examining the contents --
  * ico.c simply does not have a recogniser.
  *
@@ -88,6 +90,8 @@ magick_sniff_file( ImageInfo *image_info, const char *filename )
 		magick_sniff_bytes( image_info, bytes, 256 );
 }
 
+#endif /*defined(HAVE_MAGICK6) || defined(HAVE_MAGICK7)*/
+
 #ifdef HAVE_MAGICK7
 
 Image *
@@ -747,4 +751,4 @@ magick_set_magick_profile( Image *image,
 	return( 0 );
 }
 
-#endif /*HAVE_MAGICK*/
+#endif /*defined(HAVE_MAGICK6) || defined(HAVE_MAGICK7)*/