diff --git a/src/libmsc/gsm_04_11_gsup.c b/src/libmsc/gsm_04_11_gsup.c
index b6b798f..dfc90cc 100644
--- a/src/libmsc/gsm_04_11_gsup.c
+++ b/src/libmsc/gsm_04_11_gsup.c
@@ -152,8 +152,8 @@
 	/* Make sure that 'SMS over GSUP' is expected */
 	if (!net->sms_over_gsup) {
 		/* TODO: notify sender about that? */
-		LOGP(DLSMS, LOGL_NOTICE, "Unexpected MO SMS over GSUP, "
-			"ignoring message...\n");
+		LOGP(DLSMS, LOGL_NOTICE, "Unexpected MO SMS over GSUP "
+			"(sms-over-gsup is not enabled), ignoring message...\n");
 		return -EIO;
 	}
 
@@ -243,8 +243,8 @@
 
 	/* Make sure that 'SMS over GSUP' is expected */
 	if (!net->sms_over_gsup) {
-		LOGP(DLSMS, LOGL_NOTICE, "Unexpected MT SMS over GSUP, "
-			"ignoring message...\n");
+		LOGP(DLSMS, LOGL_NOTICE, "Unexpected MT SMS over GSUP "
+			"(sms-over-gsup is not enabled), ignoring message...\n");
 		/* TODO: notify sender about that? */
 		return -EIO;
 	}