diff --git a/zeropad b/zeropad
index 96864851972ac3af82a71a20dd4ab7894bb524b6..0021e61ec7f2765498b80b405fedd075863c86c9 100755
--- a/zeropad
+++ b/zeropad
@@ -13,7 +13,7 @@ echo ""
 echo "Usage: zeropad <input> <length of output>"
 echo "e.g. zeropad 1 4    gives 0001"
 echo ""
-exit
+exit 1
 }
 
 [ "$1" = "" ] && Usage