diff --git a/src/simutil.c b/src/simutil.c
index 22dfaeb6..c9172b23 100644
--- a/src/simutil.c
+++ b/src/simutil.c
@@ -1410,7 +1410,7 @@ gboolean sim_parse_3g_get_response(const unsigned char *data, int len,
 	if (tlv[1] != 0x21)
 		return FALSE;
 
-	switch (tlv[0] & 0x3) {
+	switch (tlv[0] & 0x7) {
 	case 1:	/* Transparent */
 		str = 0x00;
 		break;