diff --git a/src/Disks/DiskLocal.cpp b/src/Disks/DiskLocal.cpp
index 10140c26ab2..8787f613bf7 100644
--- a/src/Disks/DiskLocal.cpp
+++ b/src/Disks/DiskLocal.cpp
@@ -21,10 +21,6 @@ namespace ErrorCodes
     extern const int EXCESSIVE_ELEMENT_IN_CONFIG;
     extern const int PATH_ACCESS_DENIED;
     extern const int INCORRECT_DISK_INDEX;
-    extern const int FILE_DOESNT_EXIST;
-    extern const int CANNOT_OPEN_FILE;
-    extern const int CANNOT_FSYNC;
-    extern const int CANNOT_CLOSE_FILE;
     extern const int CANNOT_TRUNCATE_FILE;
     extern const int CANNOT_UNLINK;
     extern const int CANNOT_RMDIR;
diff --git a/src/Disks/S3/DiskS3.cpp b/src/Disks/S3/DiskS3.cpp
index 6674997e7b9..238db98c9cc 100644
--- a/src/Disks/S3/DiskS3.cpp
+++ b/src/Disks/S3/DiskS3.cpp
@@ -36,7 +36,6 @@ namespace ErrorCodes
     extern const int CANNOT_SEEK_THROUGH_FILE;
     extern const int UNKNOWN_FORMAT;
     extern const int INCORRECT_DISK_INDEX;
-    extern const int NOT_IMPLEMENTED;
     extern const int PATH_ACCESS_DENIED;
     extern const int CANNOT_DELETE_DIRECTORY;
 }