1 files changed, 2 insertions, 2 deletions
diff --git a/vm.c b/vm.c
index c627a91bcf..3147ae4c73 100644
--- a/vm.c
+++ b/vm.c
@@ -1792,8 +1792,8 @@ thread_memsize(const void *ptr)
     }
 }
 
-#define thread_data_type ruby_thread_data_type
-const rb_data_type_t ruby_thread_data_type = {
+#define thread_data_type ruby_threadptr_data_type
+const rb_data_type_t ruby_threadptr_data_type = {
     "VM/thread",
     {
 	rb_thread_mark,