diff --git a/lib/private/Template/SCSSCacher.php b/lib/private/Template/SCSSCacher.php
index 1c4650ea1b7..391138255b0 100644
--- a/lib/private/Template/SCSSCacher.php
+++ b/lib/private/Template/SCSSCacher.php
@@ -254,6 +254,7 @@ class SCSSCacher {
 	 * We need to regenerate all files when variables change
 	 */
 	private function resetCache() {
+		$this->injectedVariables = null;
 		$appDirectory = $this->appData->getDirectoryListing();
 		if(empty($appDirectory)){
 			return;