diff --git a/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.0.xsd b/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.0.xsd
index f8b97c1384..65b9fbeda4 100644
--- a/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.0.xsd
+++ b/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.0.xsd
@@ -2451,7 +2451,7 @@ Name of the header whose value will be used to route messages
- A SpEL expression to apply to the message group (e.g, payload.size() > 6)
+ A SpEL expression to evaluate against a root object that is the Collection of messages within the message group (e.g, size() > 6)