diff --git a/datafusion/spark/src/function/math/hex.rs b/datafusion/spark/src/function/math/hex.rs
index 74ec7641b38f..c110017e8388 100644
--- a/datafusion/spark/src/function/math/hex.rs
+++ b/datafusion/spark/src/function/math/hex.rs
@@ -74,7 +74,7 @@ impl ScalarUDFImpl for SparkHex {
         &self,
         _arg_types: &[DataType],
     ) -> datafusion_common::Result<DataType> {
-        Ok(DataType::Utf8)
+        Ok(DataType::Utf8View)
     }
 
     fn invoke_with_args(