diff --git a/shared_scripts.yml b/shared_scripts.yml
index 5a66280b24fc8ae7896433f1cb00265de97f4d43..7328d5ed54de57ee47954d4096fca67a0eae98d3 100644
--- a/shared_scripts.yml
+++ b/shared_scripts.yml
@@ -122,10 +122,10 @@ variables:
     -   exit 1
     - fi
     # Clean folder before building. Exclude cache for now
-    - if [[ $CLEAN_CACHE = true ]] ; then
-      - git clean -qxfdf && git submodule foreach --quiet --recursive git clean -qxfdf
+    - if [[ "${CLEAN_CACHE}" = "true" ]] ; then
+    -   git clean -qxfdf && git submodule foreach --quiet --recursive git clean -qxfdf
     - else
-      - git clean -qxfdf -e Zen -e PSOCache -e LocalDDC -e Intermediate -e Saved -e Binaries -e Build && git submodule foreach --quiet --recursive git clean -qxfdf
+    -   git clean -qxfdf -e Zen -e PSOCache -e LocalDDC -e Intermediate -e Saved -e Binaries -e Build && git submodule foreach --quiet --recursive git clean -qxfdf
     - fi
     # Preparation and building stage
     - PATH=$PREPEND_PATH:$PATH:$APPEND_PATH