--- a/mac-robber.c
+++ b/mac-robber.c
@@ -45,6 +45,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <dirent.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -238,7 +239,7 @@
     /* Make a buffer for the full path
      * the 2 is for 1 NULL and 1 '/' for recursive directories 
      */
-    path_len = dir_len + MAXNAMLEN + 2;
+    path_len = dir_len + NAME_MAX + 2;
     if (!(curpath = (char *) malloc(path_len))) {
         printf("error allocating space for curpath\n");
         exit(1);