diff --git a/spark/src/test/scala/org/apache/comet/CometCastSuite.scala b/spark/src/test/scala/org/apache/comet/CometCastSuite.scala
index 57eeb428b..b6b6c0129 100644
--- a/spark/src/test/scala/org/apache/comet/CometCastSuite.scala
+++ b/spark/src/test/scala/org/apache/comet/CometCastSuite.scala
@@ -53,8 +53,6 @@ class CometCastSuite extends CometTestBase with AdaptiveSparkPlanHelper {
    */
   private val numericPattern = "0123456789deEf+-." + whitespaceChars
 
-  private val datePattern = "0123456789/" + whitespaceChars
-
   private val timestampPattern = "0123456789/:T" + whitespaceChars
 
   test("all valid cast combinations covered") {