diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c
index e3b10d0..9a9f70e 100644
--- a/src/gsm/gsm0808.c
+++ b/src/gsm/gsm0808.c
@@ -341,6 +341,19 @@
 	return msg;
 }
 
+/*! Create BSSMAP Classmark Request message
+ *  \returns callee-allocated msgb with BSSMAP Classmark Request message */
+struct msgb *gsm0808_create_classmark_request()
+{
+	struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM,
+					       "classmark-request");
+	if (!msg)
+		return NULL;
+
+	msgb_v_put(msg, BSS_MAP_MSG_CLASSMARK_RQST);
+	msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg));
+	return msg;
+}
 
 /*! Create BSSMAP Classmark Update message
  *  \param[in] cm2 Classmark 2
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 60d6ed8..0c40c88 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -156,6 +156,7 @@
 gsm0808_create_cipher;
 gsm0808_create_cipher_complete;
 gsm0808_create_cipher_reject;
+gsm0808_create_classmark_request;
 gsm0808_create_classmark_update;
 gsm0808_create_clear_command;
 gsm0808_create_clear_complete;