diff --git a/fs/exec.c b/fs/exec.c
index 7b6f4d5..864c50d 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -355,7 +355,7 @@
  * flags, permissions, and offset, so we use temporary values.  We'll update
  * them later in setup_arg_pages().
  */
-int bprm_mm_init(struct linux_binprm *bprm)
+static int bprm_mm_init(struct linux_binprm *bprm)
 {
 	int err;
 	struct mm_struct *mm = NULL;