diff --git a/openbsc/src/libbsc/bts_ericsson_rbs2000.c b/openbsc/src/libbsc/bts_ericsson_rbs2000.c
index 1abf4a3..0cae6d8 100644
--- a/openbsc/src/libbsc/bts_ericsson_rbs2000.c
+++ b/openbsc/src/libbsc/bts_ericsson_rbs2000.c
@@ -141,13 +141,15 @@
 	case S_L_INP_LINE_INIT:
 	case S_L_INP_LINE_NOALARM:
 		if (strcasecmp(isd->line->driver->name, "DAHDI")
-		 && strcasecmp(isd->line->driver->name, "MISDN_LAPD"))
+		 && strcasecmp(isd->line->driver->name, "MISDN_LAPD")
+		 && strcasecmp(isd->line->driver->name, "UNIXSOCKET"))
 			break;
 		start_sabm_in_line(isd->line, 1);
 		break;
 	case S_L_INP_LINE_ALARM:
 		if (strcasecmp(isd->line->driver->name, "DAHDI")
-		 && strcasecmp(isd->line->driver->name, "MISDN_LAPD"))
+		 && strcasecmp(isd->line->driver->name, "MISDN_LAPD")
+		 && strcasecmp(isd->line->driver->name, "UNIXSOCKET"))
 			break;
 		start_sabm_in_line(isd->line, 0);
 		break;