diff --git a/src/Functions/FunctionsConversion.h b/src/Functions/FunctionsConversion.h
index 4dc64d16f09..1e047e9b6ff 100644
--- a/src/Functions/FunctionsConversion.h
+++ b/src/Functions/FunctionsConversion.h
@@ -2840,7 +2840,7 @@ protected:
     bool useDefaultImplementationForNulls() const override { return false; }
     /// CAST(Nothing, T) -> T
     bool useDefaultImplementationForNothing() const override { return false; }
-    bool useDefaultImplementationForConstants() const override { return false; }
+    bool useDefaultImplementationForConstants() const override { return true; }
     bool useDefaultImplementationForLowCardinalityColumns() const override { return false; }
     ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1}; }