diff --git a/update.sh b/update.sh
index 2f3e363..d92e83a 100755
--- a/update.sh
+++ b/update.sh
@@ -23,7 +23,7 @@ git fetch --tags > /dev/null;
 TAG=$(git tag --list | grep "^$PREFIX-" | sort -r | head -n 1);
 if git verify-tag --raw "$TAG" 2>&1 | grep "TRUST_ULTIMATE" > /dev/null; then
     git checkout -q "$TAG";
-    if [ -f "$CONF_SCRIPT" ]; then
+    if [ -x "$CONF_SCRIPT" ]; then
         r ./$CONF_SCRIPT;
     fi
 else