diff --git a/h_malloc.c b/h_malloc.c
index 2e3f1ff..cd44042 100644
--- a/h_malloc.c
+++ b/h_malloc.c
@@ -5,6 +5,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <malloc.h>
 #include <pthread.h>
 #include <sys/mman.h>
 #include <unistd.h>