diff --git a/openbsc/src/gprs/gprs_utils.c b/openbsc/src/gprs/gprs_utils.c
index c620454..0cf8e4f 100644
--- a/openbsc/src/gprs/gprs_utils.c
+++ b/openbsc/src/gprs/gprs_utils.c
@@ -209,3 +209,11 @@
 	return 1;
 }
 
+void gprs_parse_tmsi(const uint8_t *value, uint32_t *tmsi)
+{
+	uint32_t tmsi_be;
+
+	memcpy(&tmsi_be, value, sizeof(tmsi_be));
+
+	*tmsi = ntohl(tmsi_be);
+}