diff --git a/build/build_cows.go b/build/build_cows.go
index f4a6d542..fbea162a 100644
--- a/build/build_cows.go
+++ b/build/build_cows.go
@@ -78,10 +78,14 @@ func convertPngToCow(sourceDirpath string, sourceFpath string, destDirpath strin
 	// Can't be bothered resolving atm, so just skip past any failed conversions
 	imgErr, converted := img2xterm(sourceFpath)
 	if imgErr == nil {
-		err := os.WriteFile(destFpath, converted, 0644)
-		time.Sleep(0)
-		if err != nil {
-			log.Fatal(err)
+		if len(converted) == 0 {
+			fmt.Println("skipping empty conversion result", sourceFpath)
+		} else {
+			err := os.WriteFile(destFpath, converted, 0644)
+			time.Sleep(0)
+			if err != nil {
+				log.Fatal(err)
+			}
 		}
 	}
 	pbar.Add(1)
diff --git a/build/cows.gob b/build/cows.gob
index e65f0fd5..6659c158 100644
Binary files a/build/cows.gob and b/build/cows.gob differ
diff --git a/build/cows.tar.gz b/build/cows.tar.gz
index a53eeb78..1cb34614 100644
Binary files a/build/cows.tar.gz and b/build/cows.tar.gz differ