diff --git a/src/Functions/seriesPeriodDetectFFT.cpp b/src/Functions/seriesPeriodDetectFFT.cpp
index c40ee3fd385..48448e1f004 100644
--- a/src/Functions/seriesPeriodDetectFFT.cpp
+++ b/src/Functions/seriesPeriodDetectFFT.cpp
@@ -28,7 +28,6 @@ namespace DB
 {
 namespace ErrorCodes
 {
-extern const int BAD_ARGUMENTS;
 extern const int ILLEGAL_COLUMN;
 }