diff --git a/push-update.sh b/push-update.sh
index 6539338..fae0f54 100755
--- a/push-update.sh
+++ b/push-update.sh
@@ -47,12 +47,13 @@ do
 	(echo -e "Failed to checkout lib on tag ${VERSION}\n" &&
 	exit 1)
 	cd "${project}"
-	git diff-index --quiet HEAD "`echo ${PATH_LIB#'/'}`"
+	LIB_DIR=`echo ${PATH_LIB#'/'}`
+	git diff-index --quiet HEAD "$LIB_DIR"
 	LIB_NEW_COMMITS=`echo $?`
 	if [ $LIB_NEW_COMMITS == 1 ]
 	then
 	    (git reset > /dev/null &&
-        git add "`echo ${PATH_LIB#'/'}`" > /dev/null &&
+        git add "$LIB_DIR" > /dev/null &&
         git commit -m $MESSAGE > /dev/null) ||
         (echo -e "Failed to update lib for ${project}\n" &&
         exit 1)