diff --git a/galaxy/api/plugin.py b/galaxy/api/plugin.py
index 273ff69..ce09698 100644
--- a/galaxy/api/plugin.py
+++ b/galaxy/api/plugin.py
@@ -207,8 +207,12 @@ class Plugin():
         params = {"owned_game" : game}
         self._notification_client.notify("owned_game_updated", params)
 
-    def unlock_achievement(self, achievement):
-        self._notification_client.notify("achievement_unlocked", achievement)
+    def unlock_achievement(self, game_id, achievement):
+        params = {
+            "game_id": game_id,
+            "achievement": achievement
+        }
+        self._notification_client.notify("achievement_unlocked", params)
 
     def update_local_game_status(self, local_game):
         params = {"local_game" : local_game}
diff --git a/tests/test_achievements.py b/tests/test_achievements.py
index 72d4693..eb5d441 100644
--- a/tests/test_achievements.py
+++ b/tests/test_achievements.py
@@ -70,7 +70,7 @@ def test_unlock_achievement(plugin, write):
     achievement = Achievement("lvl20", 1548422395)
 
     async def couritine():
-        plugin.unlock_achievement(achievement)
+        plugin.unlock_achievement("14", achievement)
 
     asyncio.run(couritine())
     response = json.loads(write.call_args[0][0])
@@ -79,7 +79,10 @@ def test_unlock_achievement(plugin, write):
         "jsonrpc": "2.0",
         "method": "achievement_unlocked",
         "params": {
-            "achievement_id": "lvl20",
-            "unlock_time": 1548422395
+            "game_id": "14",
+            "achievement": {
+                "achievement_id": "lvl20",
+                "unlock_time": 1548422395
+            }
         }
     }