diff --git a/backend/maxicode.c b/backend/maxicode.c
index 3e77d909..2a882d6e 100644
--- a/backend/maxicode.c
+++ b/backend/maxicode.c
@@ -26,7 +26,11 @@
 #include "reedsol.h"
 #include <string.h>
 #include <stdlib.h>
-#include <malloc.h>
+#ifdef __APPLE__
+#include <sys/malloc.h> 
+#else
+#include <malloc.h> 
+#endif
 
 int maxi_codeword[144];