diff --git a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/route/builder/PredicateSpec.java b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/route/builder/PredicateSpec.java
index 181c0c48..28dac2e5 100644
--- a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/route/builder/PredicateSpec.java
+++ b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/route/builder/PredicateSpec.java
@@ -117,7 +117,7 @@ public class PredicateSpec extends UriSpec {
 	 */
 	public BooleanSpec header(String header) {
 		return asyncPredicate(getBean(HeaderRoutePredicateFactory.class)
-				.applyAsync(c -> c.setHeader(header))); //TODO: default regexp
+				.applyAsync(c -> c.setHeader(header)));
 	}
 
 	/**