diff --git a/brainpy/_src/math/op_register/numba_approach/__init__.py b/brainpy/_src/math/op_register/numba_approach/__init__.py
index 7429659e..5ac07191 100644
--- a/brainpy/_src/math/op_register/numba_approach/__init__.py
+++ b/brainpy/_src/math/op_register/numba_approach/__init__.py
@@ -148,7 +148,6 @@ def __call__(self, *args, **kwargs):
     return res
 
 
-def register_op_with_numba_xla(
 def register_op_with_numba_xla(
     op_name: str,
     cpu_func: Callable,