diff --git a/lfs.c b/lfs.c
index a42af0b..d5c8412 100644
--- a/lfs.c
+++ b/lfs.c
@@ -5,7 +5,7 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 #include "lfs.h"
-#include "lfs_util.h"
+#include <lfs_util.h>
 
 #define LFS_BLOCK_NULL ((lfs_block_t)-1)
 #define LFS_BLOCK_INLINE ((lfs_block_t)-2)
diff --git a/lfs.h b/lfs.h
index c20e097..b4d65cb 100644
--- a/lfs.h
+++ b/lfs.h
@@ -85,9 +85,6 @@ enum lfs_error {
     LFS_ERR_NOMEM       = -12,  // No more memory available
     LFS_ERR_NOATTR      = -61,  // No data/attr available
     LFS_ERR_NAMETOOLONG = -36,  // File name too long
-#if LFS_THREAD_SAFE
-    LFS_ERR_LOCK        = -23,  // Failed to aquire lock
-#endif
 };
 
 // File types