diff --git a/ecryptfs-utils.security.patch b/ecryptfs-utils.security.patch
index c876726..30cda60 100644
--- a/ecryptfs-utils.security.patch
+++ b/ecryptfs-utils.security.patch
@@ -2,11 +2,12 @@ Index: ecryptfs-utils-96/src/pam_ecryptfs/pam_ecryptfs.c
 ===================================================================
 --- ecryptfs-utils-96.orig/src/pam_ecryptfs/pam_ecryptfs.c
 +++ ecryptfs-utils-96/src/pam_ecryptfs/pam_ecryptfs.c
-@@ -37,6 +37,7 @@
+@@ -37,6 +37,8 @@
  #include <sys/wait.h>
  #include <sys/types.h>
  #include <sys/stat.h>
 +#include <sys/fsuid.h>
++#include <grp.h>
  #include <fcntl.h>
  #include <security/pam_modules.h>
  #include "../include/ecryptfs.h"