diff --git a/src/Storages/MergeTree/MergeTreeReadPool.cpp b/src/Storages/MergeTree/MergeTreeReadPool.cpp
index 9927d369104..23c314e48f5 100644
--- a/src/Storages/MergeTree/MergeTreeReadPool.cpp
+++ b/src/Storages/MergeTree/MergeTreeReadPool.cpp
@@ -24,6 +24,7 @@ namespace ErrorCodes
 {
 extern const int CANNOT_SCHEDULE_TASK;
 extern const int LOGICAL_ERROR;
+extern const int BAD_ARGUMENTS;
 }
 
 MergeTreeReadPool::MergeTreeReadPool(
diff --git a/src/Storages/MergeTree/MergeTreeReadPoolBase.cpp b/src/Storages/MergeTree/MergeTreeReadPoolBase.cpp
index 1cc13102794..95a10454f9e 100644
--- a/src/Storages/MergeTree/MergeTreeReadPoolBase.cpp
+++ b/src/Storages/MergeTree/MergeTreeReadPoolBase.cpp
@@ -13,7 +13,6 @@ namespace DB
 namespace ErrorCodes
 {
     extern const int LOGICAL_ERROR;
-    extern const int BAD_ARGUMENTS;
 }
 
 MergeTreeReadPoolBase::MergeTreeReadPoolBase(