diff --git a/openbsc/src/libcommon/gsm_data.c b/openbsc/src/libcommon/gsm_data.c
index e3a6ba3..c273e6b 100644
--- a/openbsc/src/libcommon/gsm_data.c
+++ b/openbsc/src/libcommon/gsm_data.c
@@ -362,6 +362,7 @@
 	case GSM_BTS_TYPE_BS11:
 	case GSM_BTS_TYPE_UNKNOWN:
 	case GSM_BTS_TYPE_NOKIA_SITE:
+	case _NUM_GSM_BTS_TYPE:
 		break;
 	}