diff --git a/thread.c b/thread.c
index f2dd417297..2f5e279e52 100644
--- a/thread.c
+++ b/thread.c
@@ -424,13 +424,6 @@ rb_vm_gvl_destroy(rb_global_vm_lock_t *gvl)
 {
     gvl_release(gvl);
     gvl_destroy(gvl);
-
-    if (0) {
-        rb_vm_t *vm = GET_VM();
-        /* may be held by running threads */
-        rb_native_mutex_destroy(&vm->waitpid_lock);
-        rb_native_mutex_destroy(&vm->workqueue_lock);
-    }
 }
 
 void
diff --git a/vm.c b/vm.c
index ef1bf0facb..6b8119b1ba 100644
--- a/vm.c
+++ b/vm.c
@@ -2664,6 +2664,8 @@ ruby_vm_destruct(rb_vm_t *vm)
 	if (objspace) {
 	    rb_objspace_free(objspace);
 	}
+        rb_native_mutex_destroy(&vm->waitpid_lock);
+        rb_native_mutex_destroy(&vm->workqueue_lock);
 	/* after freeing objspace, you *can't* use ruby_xfree() */
 	ruby_mimfree(vm);
 	ruby_current_vm_ptr = NULL;