diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index e62f3fc7241edcb9f03ce1e87812e3c9fe0b9bd6..1548be26b5e61060ee5c5eb440209bd98b850724 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -38,7 +38,7 @@ static struct dentry *lock_parent(struct dentry *dentry)
 	struct dentry *dir;
 
 	dir = dget(dentry->d_parent);
-	mutex_lock(&(dir->d_inode->i_mutex));
+	mutex_lock_nested(&(dir->d_inode->i_mutex), I_MUTEX_PARENT);
 	return dir;
 }