diff --git a/wcfsetup/install/files/lib/system/user/command/SetAvatar.class.php b/wcfsetup/install/files/lib/system/user/command/SetAvatar.class.php
index 823d4234db..7558372d54 100644
--- a/wcfsetup/install/files/lib/system/user/command/SetAvatar.class.php
+++ b/wcfsetup/install/files/lib/system/user/command/SetAvatar.class.php
@@ -6,6 +6,7 @@
 use wcf\data\file\FileAction;
 use wcf\data\user\User;
 use wcf\data\user\UserEditor;
+use wcf\system\cache\runtime\UserProfileRuntimeCache;
 use wcf\system\user\group\assignment\UserGroupAssignmentHandler;
 use wcf\system\user\storage\UserStorageHandler;
 use wcf\system\user\UserProfileHandler;
@@ -39,6 +40,7 @@ public function __invoke()
         ]);
 
         UserStorageHandler::getInstance()->reset([$this->user->userID], 'avatar');
+        UserProfileRuntimeCache::getInstance()->removeObject($this->user->userID);
 
         // check if the user will be automatically added to new user groups
         // because of the changed avatar