diff --git a/ipojo/core/src/main/resources/metadata.xml b/ipojo/core/src/main/resources/metadata.xml
index 3163416..89911da 100644
--- a/ipojo/core/src/main/resources/metadata.xml
+++ b/ipojo/core/src/main/resources/metadata.xml
@@ -20,7 +20,7 @@
 	<handler
 		classname="org.apache.felix.ipojo.handlers.architecture.ArchitectureHandler"
 		name="architecture" architecture="false">
-		<provides>
+		<provides interface="org.apache.felix.ipojo.architecture.Architecture">
 			<property field="m_name" name="instance.name" value="" />
 		</provides>
 	</handler>