diff --git a/spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala b/spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala
index 22dee1a32..fc58c0f43 100644
--- a/spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala
+++ b/spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala
@@ -2724,12 +2724,6 @@ object QueryPlanSerde extends Logging with ShimQueryPlanSerde with CometExprShim
           return None
         }
 
-        val keyTypes = (join.leftKeys ++ join.rightKeys).map(_.dataType)
-        if (keyTypes.exists(!supportedDataType(_, allowStruct = true))) {
-          withInfo(join, "Unsupported data type in join keys")
-          return None
-        }
-
         if (join.buildSide == BuildRight && join.joinType == LeftAnti) {
           withInfo(join, "BuildRight with LeftAnti is not supported")
           return None