diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 617fd7b37447..c70204a61268 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -230,3 +230,6 @@ static inline int __simple_empty(struct dentry *dentry)
 out:
 	return ret;
 }
+
+void autofs4_dentry_release(struct dentry *);
+
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 4eddee4e76fc..fde78b110ddd 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -292,7 +292,6 @@ static struct autofs_info *autofs4_mkroot(struct autofs_sb_info *sbi)
 	return ino;
 }
 
-void autofs4_dentry_release(struct dentry *);
 static struct dentry_operations autofs4_sb_dentry_operations = {
 	.d_release      = autofs4_dentry_release,
 };