diff --git a/scripts/configure_ubuntu.sh b/scripts/configure_ubuntu.sh
index 6cad1f1..a3d07ed 100755
--- a/scripts/configure_ubuntu.sh
+++ b/scripts/configure_ubuntu.sh
@@ -7,7 +7,7 @@ set -eu
 
 ROOT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/"
 
-cd ${ROOT_DIR}
+cd "${ROOT_DIR}"
 
 #need some openGL stuff
 sudo apt install libgl1-mesa-dev