diff --git a/build_tools/prep_moduledeps b/build_tools/prep_moduledeps
index 7e6b7d3329..d6ea8aef61 100755
--- a/build_tools/prep_moduledeps
+++ b/build_tools/prep_moduledeps
@@ -28,7 +28,7 @@ process_dir() {
 	echo -e "\t</category>"
 }
 
-echo "<?xml version="1.0"?>"
+echo "<?xml version=\"1.0\"?>"
 echo
 echo "<menu name=\"Asterisk Module Selection\">"
 rm -f .makeoptstmp