diff --git a/gravity.sh b/gravity.sh
index 65b34e5c..a28aea25 100755
--- a/gravity.sh
+++ b/gravity.sh
@@ -376,7 +376,7 @@ gravity_DownloadBlocklists() {
     echo -e "  ${INFO} Target: ${url}"
     local regex
     # Check for characters NOT allowed in URLs
-    regex="[^a-zA-Z0-9:/?&%=~._-]"
+    regex="[^a-zA-Z0-9:/?&%=~._()-]"
     if [[ "${url}" =~ ${regex} ]]; then
         echo -e "  ${CROSS} Invalid Target"
     else