diff --git a/emsdk_env.sh b/emsdk_env.sh
index fc96a18..df11073 100755
--- a/emsdk_env.sh
+++ b/emsdk_env.sh
@@ -19,11 +19,11 @@ SRC="$BASH_SOURCE"
 if [ "$SRC" = "" ]; then
   SRC="$0"
 fi
-CURDIR=$(pwd)
-cd $(dirname "$SRC")
+CURDIR="$(pwd)"
+cd "$(dirname "$SRC")"
 unset SRC
 
 ./emsdk construct_env "$@"
 . ./emsdk_set_env.sh
 
-cd $CURDIR
+cd "$CURDIR"