diff --git a/backends-clickhouse/src/main/scala/org/apache/gluten/backendsapi/clickhouse/CHBackend.scala b/backends-clickhouse/src/main/scala/org/apache/gluten/backendsapi/clickhouse/CHBackend.scala
index ff0cd39109e8..d57edf5beb06 100644
--- a/backends-clickhouse/src/main/scala/org/apache/gluten/backendsapi/clickhouse/CHBackend.scala
+++ b/backends-clickhouse/src/main/scala/org/apache/gluten/backendsapi/clickhouse/CHBackend.scala
@@ -327,8 +327,6 @@ object CHBackendSettings extends BackendSettingsApi with Logging {
 
   override def supportStructType(): Boolean = true
 
-  override def structFieldToLowerCase(): Boolean = false
-
   override def supportExpandExec(): Boolean = true
 
   override def excludeScanExecFromCollapsedStage(): Boolean =