diff --git a/libclamav/png.c b/libclamav/png.c
index 4d16fe645e..bf3c8eb340 100644
--- a/libclamav/png.c
+++ b/libclamav/png.c
@@ -257,13 +257,6 @@ cl_error_t cli_parsepng(cli_ctx *ctx)
             /*------*
              | tRNS |
              *------*/
-
-            if (color_type == 3) {
-                if ((chunk_data_length > 256 || chunk_data_length > num_palette_entries) && !have_PLTE) {
-                    status = cli_append_potentially_unwanted(ctx, "Heuristics.PNG.CVE-2004-0597");
-                    goto done; // always, even if allmatch mode means status comes back 'success' instead of 'virus'.
-                }
-            }
         }
 
         if (fmap_readn(map, &chunk_crc, offset, PNG_CHUNK_CRC_SIZE) != PNG_CHUNK_CRC_SIZE) {