diff --git a/src/function.rs b/src/function.rs
index e34420f..636194b 100644
--- a/src/function.rs
+++ b/src/function.rs
@@ -285,7 +285,7 @@ impl<'lua> Function<'lua> {
             "#,
         )
         .try_cache()
-        .set_name("_mlua_bind")
+        .set_name("__mlua_bind")
         .call((self.clone(), args_wrapper))
     }
 
diff --git a/src/lua.rs b/src/lua.rs
index 70550d0..ca35017 100644
--- a/src/lua.rs
+++ b/src/lua.rs
@@ -2887,7 +2887,7 @@ impl Lua {
             "#,
         )
         .try_cache()
-        .set_name("_mlua_async_poll")
+        .set_name("__mlua_async_poll")
         .set_environment(env)
         .into_function()
     }