diff --git a/src/test/func/miracle_ptr/miracle_ptr.cc b/src/test/func/miracle_ptr/miracle_ptr.cc
index 45e383828..6d4ea26af 100644
--- a/src/test/func/miracle_ptr/miracle_ptr.cc
+++ b/src/test/func/miracle_ptr/miracle_ptr.cc
@@ -5,11 +5,6 @@
  *
  * Do not use as is.
  */
-#if defined(__has_feature)
-#  if __has_feature(thread_sanitizer)
-#    define SNMALLOC_THREAD_SANITIZER_ENABLED
-#  endif
-#endif
 
 #ifdef SNMALLOC_THREAD_SANITIZER_ENABLED
 int main()