diff --git a/backends-clickhouse/src/main/scala/org/apache/gluten/extension/CommonSubexpressionEliminateRule.scala b/backends-clickhouse/src/main/scala/org/apache/gluten/extension/CommonSubexpressionEliminateRule.scala
index a3b74366fc7b7..2dbe3ed29176b 100644
--- a/backends-clickhouse/src/main/scala/org/apache/gluten/extension/CommonSubexpressionEliminateRule.scala
+++ b/backends-clickhouse/src/main/scala/org/apache/gluten/extension/CommonSubexpressionEliminateRule.scala
@@ -121,7 +121,12 @@ class CommonSubexpressionEliminateRule(session: SparkSession, conf: SQLConf)
         if (expr.find(_.isInstanceOf[AggregateExpression]).isDefined) {
           addToEquivalentExpressions(expr, equivalentExpressions)
         } else {
-          equivalentExpressions.addExprTree(expr)
+          expr match {
+            case alias: Alias =>
+              equivalentExpressions.addExprTree(alias.child)
+            case _ =>
+              equivalentExpressions.addExprTree(expr)
+          }
         }
       })