diff --git a/coders/png.c b/coders/png.c
index acd8cc3187e..71d3cfada9f 100644
--- a/coders/png.c
+++ b/coders/png.c
@@ -4296,7 +4296,7 @@ static Image *ReadOneJNGImage(MngInfo *mng_info,
       {
         if (color_image != (Image *) NULL)
           color_image=DestroyImage(color_image);
-        if (color_image_info != (Image *) NULL)
+        if (color_image_info != (ImageInfo *) NULL)
           color_image_info=DestroyImageInfo(color_image_info);
         ThrowReaderException(CorruptImageError,"CorruptImage");
       }