diff --git a/Hooks/syntax.sh b/Hooks/syntax.sh
index 009aeff..1fbb104 100644
--- a/Hooks/syntax.sh
+++ b/Hooks/syntax.sh
@@ -102,7 +102,7 @@ if [[ "$FILE" =~ ^.+(sh)$ ]]; then
 fi
 
 # text files in general
-if [[ "$FILE" =~ ^.+(sh|js|php|json)$ ]]; then
+if [[ "$FILE" =~ ^.+(sh|js|php|json|css)$ ]]; then
     # Check whitespace end of line in code
     if [[ -n $(grep -E ' $' $FILE) ]]; then
         echo -e "\e[1;31m\tFound whitespace at end of line.\e[0m" >&2