diff --git a/libvips/iofuncs/targetcustom.c b/libvips/iofuncs/targetcustom.c
index 82237458..e2dc1c3a 100644
--- a/libvips/iofuncs/targetcustom.c
+++ b/libvips/iofuncs/targetcustom.c
@@ -161,8 +161,8 @@ vips_target_custom_end_real( VipsTarget *target )
 
 	VIPS_DEBUG_MSG( "vips_target_custom_end_real:\n" );
 
-	/* For compatibility with oklder libvipses, we have to emit "finish"
-	 * as well. ruby-vips relies on this.
+	/* For compatibility with older libvipses, we have to emit "finish"
+	 * as well, eg. ruby-vips relies on this.
 	 */
 	g_signal_emit( target, vips_target_custom_signals[SIG_FINISH], 0 );