diff --git a/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php b/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php
index 16a48716e2..466c0a3deb 100644
--- a/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php
+++ b/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php
@@ -2403,6 +2403,9 @@ class TypoScriptFrontendController implements LoggerAwareInterface
         ];
         $this->cacheExpires = $expirationTstamp;
         $this->pageCacheTags[] = 'pageId_' . $cacheData['page_id'];
+        if ($cacheData['page_id'] !== $this->contentPid) {
+            $this->pageCacheTags[] = 'pageId_' . $this->contentPid;
+        }
         if (!empty($this->page['cache_tags'])) {
             $tags = GeneralUtility::trimExplode(',', $this->page['cache_tags'], true);
             $this->pageCacheTags = array_merge($this->pageCacheTags, $tags);