diff --git a/overlay_experimental/overlay/steam_overlay.h b/overlay_experimental/overlay/steam_overlay.h
index 2eea5b0b..70b3c3ca 100644
--- a/overlay_experimental/overlay/steam_overlay.h
+++ b/overlay_experimental/overlay/steam_overlay.h
@@ -319,7 +319,7 @@ public:
     void FriendConnect(Friend _friend) {}
     void FriendDisconnect(Friend _friend) {}
 
-    void AddAchievementNotification(const std::string &ach_name, nlohmann::json const& ach) {}
+    void AddAchievementNotification(const std::string &ach_name, nlohmann::json const& ach, bool for_progress) {}
 };
 
 #endif // EMU_OVERLAY