diff --git a/shell/cd.sh b/shell/cd.sh
index 929866e..eb43f73 100755
--- a/shell/cd.sh
+++ b/shell/cd.sh
@@ -1,13 +1,13 @@
 #!/bin/sh
 
 #correct some fast tipped cds
-function c {
-	if [ $1 == "d.." ]; then
+c() {
+	if [ "$1" == "d.." ]; then
 		cd ..;
 		pwd;
 	fi
-	if [ -d $1 ]; then
-		cd $1;
+	if [ -d "$1" ]; then
+		cd "$1";
 		pwd;
 	fi
 	return 0;