diff --git a/3rd/box2d/src/box2d_World.cpp b/3rd/box2d/src/box2d_World.cpp
index e28293f2..06593420 100644
--- a/3rd/box2d/src/box2d_World.cpp
+++ b/3rd/box2d/src/box2d_World.cpp
@@ -167,4 +167,6 @@ void PyWorld::_register(VM* vm, PyObject* mod, PyObject* type){
         b2Joint* p = self.world.CreateJoint(&def);
         return VAR(p);      // void_p
     });
+}
+
 }   // namespace pkpy
\ No newline at end of file