diff --git a/src/layer1.c b/src/layer1.c
index 69d76e4..00eb470 100644
--- a/src/layer1.c
+++ b/src/layer1.c
@@ -294,8 +294,14 @@ int ph_data_req_hdlc(struct msgb *msg, struct v5x_interface *v5if)
 int ph_data_req_dl_cc(struct msgb *msg, void *cbdata)
 {
 	struct v5x_interface *v5if = (struct v5x_interface *)cbdata;
-	struct e1inp_line *e1_line = v5if->cc_link->e1_line;
+	struct e1inp_line *e1_line;
 
+	if (!v5if->cc_link) {
+		msgb_free(msg);
+		return 0;
+	}
+
+	e1_line = v5if->cc_link->e1_line;
 	if (!e1_line) {
 		msgb_free(msg);
 		return 0;