diff --git a/src/Columns/ColumnDecimal.h b/src/Columns/ColumnDecimal.h
index 6610662c88f164650a60d06bbcafcd34715b4108..46f7cfe581ea941eeb993eaeb8bd5b58eb212e9e 100644
--- a/src/Columns/ColumnDecimal.h
+++ b/src/Columns/ColumnDecimal.h
@@ -82,7 +82,7 @@ public:
 
     bool isNumeric() const override { return false; }
     bool canBeInsideNullable() const override { return true; }
-    bool isFixedAndContiguous() const final { return true; }
+    bool isFixedAndContiguous() const override { return true; }
     size_t sizeOfValueIfFixed() const override { return sizeof(T); }
 
     size_t size() const override { return data.size(); }