diff --git a/spark/src/main/scala/org/apache/comet/rules/CometScanRule.scala b/spark/src/main/scala/org/apache/comet/rules/CometScanRule.scala
index cbca7304d2..6a20bac046 100644
--- a/spark/src/main/scala/org/apache/comet/rules/CometScanRule.scala
+++ b/spark/src/main/scala/org/apache/comet/rules/CometScanRule.scala
@@ -379,12 +379,6 @@ case class CometScanTypeChecker(scanImpl: String) extends DataTypeSupport with C
       name: String,
       fallbackReasons: ListBuffer[String]): Boolean = {
     dt match {
-      case ByteType | ShortType
-          if scanImpl != CometConf.SCAN_NATIVE_COMET &&
-            !CometConf.COMET_SCAN_ALLOW_INCOMPATIBLE.get() =>
-        fallbackReasons += s"$scanImpl scan cannot read $dt when " +
-          s"${CometConf.COMET_SCAN_ALLOW_INCOMPATIBLE.key} is false. ${CometConf.COMPAT_GUIDE}."
-        false
       case _: StructType | _: ArrayType | _: MapType if scanImpl == CometConf.SCAN_NATIVE_COMET =>
         false
       case dt if isStringCollationType(dt) =>