diff --git a/python_binding/backend/pybind_OperatorImpl.cpp b/python_binding/backend/pybind_OperatorImpl.cpp
index 6a83805fc1af2e111dd1c9f49c669e0c2f9422aa..2819c78068cf7c64eeb0dca84de4518f1c6658b9 100644
--- a/python_binding/backend/pybind_OperatorImpl.cpp
+++ b/python_binding/backend/pybind_OperatorImpl.cpp
@@ -31,7 +31,7 @@ public:
         PYBIND11_OVERRIDE(
             void,
             OperatorImpl,
-            forward,
+            forward
 
         );
     }
@@ -39,7 +39,7 @@ public:
         PYBIND11_OVERRIDE(
             void,
             OperatorImpl,
-            backward,
+            backward
 
         );
     }