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 6973f199d7..d022d71209 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
@@ -2442,7 +2442,7 @@ Name of the header whose value will be used to route messages
 				</xsd:attribute>
 				<xsd:attribute name="release-strategy-expression" type="xsd:string">
 					<xsd:annotation>
-						<xsd:documentation>A SpEL expression to apply to the message group (e.g, payload.size() > 6)</xsd:documentation>
+						<xsd:documentation>A SpEL expression to evaluate against a root object that is the Collection of messages within the message group (e.g, size() > 6)</xsd:documentation>
 					</xsd:annotation>
 				</xsd:attribute>
 				<xsd:attribute name="correlation-strategy" type="xsd:string">
diff --git a/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.1.xsd b/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.1.xsd
index 4ce2f51032..5ef08a4634 100644
--- a/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.1.xsd
+++ b/spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.1.xsd
@@ -3050,7 +3050,7 @@ is provided, the return value is expected to match a channel name exactly.
 				</xsd:attribute>
 				<xsd:attribute name="release-strategy-expression" type="xsd:string">
 					<xsd:annotation>
-						<xsd:documentation>A SpEL expression to apply to the message group (e.g, payload.size() > 6)</xsd:documentation>
+						<xsd:documentation>A SpEL expression to evaluate against a root object that is the Collection of messages within the message group (e.g, size() > 6)</xsd:documentation>
 					</xsd:annotation>
 				</xsd:attribute>
 			</xsd:extension>