diff --git a/openbsc/include/openbsc/gprs_sgsn.h b/openbsc/include/openbsc/gprs_sgsn.h
index f50de11..2cc5b0c 100644
--- a/openbsc/include/openbsc/gprs_sgsn.h
+++ b/openbsc/include/openbsc/gprs_sgsn.h
@@ -244,7 +244,7 @@
 					const struct gprs_ra_id *raid);
 
 /* Allocate a new SGSN MM context */
-struct sgsn_mm_ctx *sgsn_mm_ctx_alloc(uint32_t tlli,
+struct sgsn_mm_ctx *sgsn_mm_ctx_alloc_gb(uint32_t tlli,
 					const struct gprs_ra_id *raid);
 struct sgsn_mm_ctx *sgsn_mm_ctx_alloc_iu(void *uectx);
 
diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index 9ac1077..db27276 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -1146,7 +1146,7 @@
 			if (msg->dst)
 				ctx = sgsn_mm_ctx_alloc_iu(msg->dst);
 			else
-				ctx = sgsn_mm_ctx_alloc(0, &ra_id);
+				ctx = sgsn_mm_ctx_alloc_gb(0, &ra_id);
 			if (!ctx) {
 				reject_cause = GMM_CAUSE_NET_FAIL;
 				goto rejected;
@@ -1172,7 +1172,7 @@
 			if (msg->dst)
 				ctx = sgsn_mm_ctx_alloc_iu(msg->dst);
 			else
-				ctx = sgsn_mm_ctx_alloc(msgb_tlli(msg), &ra_id);
+				ctx = sgsn_mm_ctx_alloc_gb(msgb_tlli(msg), &ra_id);
 			ctx->p_tmsi = tmsi;
 		}
 		if (ctx->ran_type == MM_CTX_T_GERAN_Gb) {
diff --git a/openbsc/src/gprs/gprs_sgsn.c b/openbsc/src/gprs/gprs_sgsn.c
index 3fb1104..6d49e19 100644
--- a/openbsc/src/gprs/gprs_sgsn.c
+++ b/openbsc/src/gprs/gprs_sgsn.c
@@ -209,8 +209,8 @@
 
 }
 
-/* Allocate a new SGSN MM context */
-struct sgsn_mm_ctx *sgsn_mm_ctx_alloc(uint32_t tlli,
+/* Allocate a new SGSN MM context for GERAN_Gb */
+struct sgsn_mm_ctx *sgsn_mm_ctx_alloc_gb(uint32_t tlli,
 					const struct gprs_ra_id *raid)
 {
 	struct sgsn_mm_ctx *ctx;
diff --git a/openbsc/tests/sgsn/sgsn_test.c b/openbsc/tests/sgsn/sgsn_test.c
index bcda9a0..0aa142f 100644
--- a/openbsc/tests/sgsn/sgsn_test.c
+++ b/openbsc/tests/sgsn/sgsn_test.c
@@ -190,7 +190,7 @@
 	int old_count = count(gprs_llme_list());
 
 	lle = gprs_lle_get_or_create(tlli, 3);
-	ctx = sgsn_mm_ctx_alloc(tlli, raid);
+	ctx = sgsn_mm_ctx_alloc_gb(tlli, raid);
 	ctx->gmm_state = GMM_REGISTERED_NORMAL;
 	ctx->gb.llme = lle->llme;