diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 9bd16255dd9c..085da86e07c2 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -408,7 +408,7 @@ done:
 	return NULL;
 }
 
-int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
+static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
 {
 	struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
 	struct autofs_info *ino = autofs4_dentry_ino(dentry);