diff --git a/sharding-core/sharding-core-route/src/main/java/org/apache/shardingsphere/core/route/router/sharding/condition/ExpressionConditionUtils.java b/sharding-core/sharding-core-route/src/main/java/org/apache/shardingsphere/core/route/router/sharding/condition/ExpressionConditionUtils.java
index 5cf5a5f6c5b377d418f3be87e3ff5453befe949a..c8b8dd5049d386e59945e10ccecfdbf8f5540d20 100644
--- a/sharding-core/sharding-core-route/src/main/java/org/apache/shardingsphere/core/route/router/sharding/condition/ExpressionConditionUtils.java
+++ b/sharding-core/sharding-core-route/src/main/java/org/apache/shardingsphere/core/route/router/sharding/condition/ExpressionConditionUtils.java
@@ -33,6 +33,6 @@ public final class ExpressionConditionUtils {
      * @return true or false
      */
     public static boolean isNowExpression(final ExpressionSegment segment) {
-        return segment instanceof ComplexExpressionSegment && "now()".equals(((ComplexExpressionSegment) segment).getText().toLowerCase());
+        return segment instanceof ComplexExpressionSegment && "now()".equalsIgnoreCase(((ComplexExpressionSegment) segment).getText());
     }
 }