diff --git a/mozilla/security/nss/lib/certdb/xbsconst.c b/mozilla/security/nss/lib/certdb/xbsconst.c
index 6095afc875b..221a5686eac 100644
--- a/mozilla/security/nss/lib/certdb/xbsconst.c
+++ b/mozilla/security/nss/lib/certdb/xbsconst.c
@@ -39,6 +39,7 @@
  */
 
 #include "prtypes.h"
+#include <limits.h>     /* for LONG_MAX */
 #include "seccomon.h"
 #include "secdert.h"
 #include "secoidt.h"