diff --git a/src/pEp.yml2 b/src/pEp.yml2
index 5625c80..7d89679 100644
--- a/src/pEp.yml2
+++ b/src/pEp.yml2
@@ -234,6 +234,8 @@ namespace pEp {
                 in SyncHandshakeResult shr,
                 in identitylist identities
             );
+
+        method leave_device_group();
 	
         method config_cipher_suite(
                 in CipherSuite suite