diff --git a/core/modules/page_cache/src/StackMiddleware/PageCache.php b/core/modules/page_cache/src/StackMiddleware/PageCache.php
index b0dcce81f8df334a3025bb56fef308b54dfe1072..712392194686b7927dbfd5494800a2c2b16bd8b1 100644
--- a/core/modules/page_cache/src/StackMiddleware/PageCache.php
+++ b/core/modules/page_cache/src/StackMiddleware/PageCache.php
@@ -255,6 +255,7 @@ protected function get(Request $request, $allow_invalid = FALSE) {
     if ($cache = $this->cache->get($cid, $allow_invalid)) {
       return $cache->data;
     }
+    return FALSE;
   }
 
   /**