1 files changed, 1 insertions, 1 deletions
diff --git a/gc.c b/gc.c
index d655e362dc..654a6c85e3 100644
--- a/gc.c
+++ b/gc.c
@@ -2755,7 +2755,7 @@ objspace_each_objects_protected(VALUE arg)
 }
 
 static VALUE
-incremental_enable(void)
+incremental_enable(VALUE _)
 {
     rb_objspace_t *objspace = &rb_objspace;