diff --git a/src/Storages/FileLog/FileLogDirectoryWatcher.h b/src/Storages/FileLog/FileLogDirectoryWatcher.h
index de15186a3b8..99fd5cf0af1 100644
--- a/src/Storages/FileLog/FileLogDirectoryWatcher.h
+++ b/src/Storages/FileLog/FileLogDirectoryWatcher.h
@@ -4,6 +4,7 @@
 #include <Poco/Foundation.h>
 #include <Poco/Path.h>
 
+#include <memory>
 #include <mutex>
 
 class FileLogDirectoryWatcher
diff --git a/src/Storages/FileLog/ReadBufferFromFileLog.cpp b/src/Storages/FileLog/ReadBufferFromFileLog.cpp
index 47985e32cb4..e5849b50894 100644
--- a/src/Storages/FileLog/ReadBufferFromFileLog.cpp
+++ b/src/Storages/FileLog/ReadBufferFromFileLog.cpp
@@ -14,7 +14,6 @@ namespace DB
 
 namespace ErrorCodes
 {
-    extern const int CANNOT_COMMIT_OFFSET;
 }
 
 ReadBufferFromFileLog::ReadBufferFromFileLog(
diff --git a/src/Storages/FileLog/ReadBufferFromFileLog.h b/src/Storages/FileLog/ReadBufferFromFileLog.h
index ce14acc9f67..e74c93d189e 100644
--- a/src/Storages/FileLog/ReadBufferFromFileLog.h
+++ b/src/Storages/FileLog/ReadBufferFromFileLog.h
@@ -25,7 +25,7 @@ public:
     ~ReadBufferFromFileLog() override = default;
 
     void open();
-    void close(); 
+    void close();
 
     auto pollTimeout() const { return poll_timeout; }
 
diff --git a/src/Storages/FileLog/StorageFileLog.cpp b/src/Storages/FileLog/StorageFileLog.cpp
index a5e1b8731da..565b206e2cc 100644
--- a/src/Storages/FileLog/StorageFileLog.cpp
+++ b/src/Storages/FileLog/StorageFileLog.cpp
@@ -38,9 +38,7 @@ namespace DB
 
 namespace ErrorCodes
 {
-    extern const int NOT_IMPLEMENTED;
     extern const int LOGICAL_ERROR;
-    extern const int BAD_ARGUMENTS;
     extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
 }
 
@@ -270,7 +268,8 @@ void registerStorageFileLog(StorageFactory & factory)
         size_t args_count = engine_args.size();
 
         if (args_count != 2)
-            throw Exception("Arguments size of StorageFileLog should be 2, path and format name", ErrorCodes::BAD_ARGUMENTS);
+            throw Exception(
+                "Arguments size of StorageFileLog should be 2, path and format name", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
 
         auto path_ast = evaluateConstantExpressionAsLiteral(engine_args[0], args.getContext());
         auto format_ast = evaluateConstantExpressionAsLiteral(engine_args[1], args.getContext());