diff --git a/src/input/misdn.c b/src/input/misdn.c
index c97169a..afa9032 100644
--- a/src/input/misdn.c
+++ b/src/input/misdn.c
@@ -115,7 +115,8 @@
 	}
 
 	if (alen != sizeof(l2addr)) {
-		fprintf(stderr, "%s error len\n", __func__);
+		if (line->ops.error)
+			line->ops.error(NULL, -EBADMSG);
 		return -EINVAL;
 	}
 
@@ -178,6 +179,8 @@
 		l2addr.channel, l2addr.sapi, l2addr.tei);
 		break;
 	default:
+		if (line->ops.error)
+			line->ops.error(NULL, -EBADMSG);
 		break;
 	}
 	return ret;