diff --git a/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/expression/rewrite/ExpressionRewriteTestHelper.java b/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/expression/rewrite/ExpressionRewriteTestHelper.java
index f4aabee6f4..75824b2441 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/expression/rewrite/ExpressionRewriteTestHelper.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/expression/rewrite/ExpressionRewriteTestHelper.java
@@ -66,7 +66,6 @@ public abstract class ExpressionRewriteTestHelper {
         Expression needRewriteExpression = PARSER.parseExpression(expression);
         needRewriteExpression = typeCoercion(replaceUnboundSlot(needRewriteExpression, mem));
         Expression expectedExpression = PARSER.parseExpression(expected);
-        expectedExpression = typeCoercion(replaceUnboundSlot(expectedExpression, mem));
         Expression rewrittenExpression = executor.rewrite(needRewriteExpression);
         Assertions.assertEquals(expectedExpression.toSql(), rewrittenExpression.toSql());
     }