1 files changed, 1 insertions, 1 deletions
diff --git a/vm_core.h b/vm_core.h
index 551e87a48a..540175cba5 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -346,7 +346,7 @@ enum rb_thread_status {
     THREAD_KILLED,
 };
 
-typedef jmp_buf rb_jmpbuf_t;
+typedef RUBY_JMP_BUF rb_jmpbuf_t;
 
 struct rb_vm_tag {
     rb_jmpbuf_t buf;