diff --git a/src/controller/python/chip/storage/__init__.py b/src/controller/python/chip/storage/__init__.py
index cb5c8a1deb9c29..20d04eca00ca83 100644
--- a/src/controller/python/chip/storage/__init__.py
+++ b/src/controller/python/chip/storage/__init__.py
@@ -165,6 +165,7 @@ def GetSdkKey(self, key: str):
 
     def DeleteSdkKey(self, key: str):
         del(self.jsonData['sdk-config'][key])
+        self.Sync()
 
     def GetUnderlyingStorageAdapter(self):
         return self._storageAdapterObj