diff --git a/gc.c b/gc.c
index aff7b118ac..a10c46f878 100644
--- a/gc.c
+++ b/gc.c
@@ -5419,7 +5419,11 @@ ruby_gc_set_params(int safe_level)
 #endif
 }
 
-RUBY_ALIAS_FUNCTION_VOID(rb_gc_set_params(void), ruby_gc_set_params, (rb_safe_level()))
+void
+rb_gc_set_params(void)
+{
+    ruby_gc_set_params(rb_safe_level());
+}
 
 void
 rb_objspace_reachable_objects_from(VALUE obj, void (func)(VALUE, void *), void *data)