diff --git a/dbms/src/Storages/MergeTree/MergeTreeData.cpp b/dbms/src/Storages/MergeTree/MergeTreeData.cpp
index 1c94db88c2a..a0554dc5401 100644
--- a/dbms/src/Storages/MergeTree/MergeTreeData.cpp
+++ b/dbms/src/Storages/MergeTree/MergeTreeData.cpp
@@ -104,6 +104,8 @@ namespace ErrorCodes
     extern const int ABORTED;
     extern const int UNKNOWN_PART_TYPE;
     extern const int UNEXPECTED_AST_STRUCTURE;
+    extern const int UNKNOWN_DISK;
+    extern const int NOT_ENOUGH_SPACE;
 }