diff --git a/src/libmsc/sms_queue.c b/src/libmsc/sms_queue.c
index 2c380b2..6346c1d 100644
--- a/src/libmsc/sms_queue.c
+++ b/src/libmsc/sms_queue.c
@@ -66,7 +66,7 @@
 
 	struct llist_head pending_sms;
 
-	char last_msisdn[VLR_MSISDN_LENGTH+1];
+	char last_msisdn[GSM23003_MSISDN_MAX_DIGITS+1];
 };
 
 static int sms_subscr_cb(unsigned int, unsigned int, void *, void *);