diff --git a/drivers/isdn/sc/event.c b/drivers/isdn/sc/event.c
index 717003a3bdf4957835f43eab78eff4f8abc62f5e..833d96c2cf92578a96efc72e18205d63101d9f03 100644
--- a/drivers/isdn/sc/event.c
+++ b/drivers/isdn/sc/event.c
@@ -57,7 +57,7 @@ int indicate_status(int card, int event, ulong Channel, char *Data)
 			memcpy(&cmd.parm.setup, Data, sizeof(cmd.parm.setup));
 			break;
 		default:
-			strcpy(cmd.parm.num, Data);
+			strlcpy(cmd.parm.num, Data, sizeof(cmd.parm.num));
 		}
 	}