diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 3286903..a2eabe9 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -1180,6 +1180,7 @@
 				confparam[3] = 2;	/* length */
 				capimsg_setu16(confparam, 4,
 					       CapiSupplementaryServiceNotSupported);
+				break;
 			}
 			info = CapiSuccess;
 			confparam[3] = 2;	/* length */