diff --git a/thread.c b/thread.c
index 0f1a1d6b8b..feb4419726 100644
--- a/thread.c
+++ b/thread.c
@@ -4779,7 +4779,7 @@ rb_gc_set_stack_end(VALUE **stack_end_p)
 {
     VALUE stack_end;
 COMPILER_WARNING_PUSH
-#ifdef __GNUC__
+#if RBIMPL_COMPILER_IS(GCC)
 COMPILER_WARNING_IGNORED(-Wdangling-pointer);
 #endif
     *stack_end_p = &stack_end;