diff --git a/Modules/_tracemalloc.c b/Modules/_tracemalloc.c
index 7021972..ddf6ef4 100644
--- a/Modules/_tracemalloc.c
+++ b/Modules/_tracemalloc.c
@@ -1,4 +1,5 @@
 #include "Python.h"
+#include "pycore_pymem.h"
 #include "pycore_traceback.h"
 #include "hashtable.h"
 #include "frameobject.h"