diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index b726279215d8ffac0dd2ad0e2db10a82a71cf742..dfc6d60131fde14e33b3384fa1ad8e042be5cc71 100644
--- a/channels/chan_zap.c
+++ b/channels/chan_zap.c
@@ -9242,7 +9242,7 @@ static void ss7_start_call(struct zt_pvt *p, struct zt_ss7 *linkset)
 	snprintf(tmp, sizeof(tmp), "%d", p->calling_party_cat);
 	pbx_builtin_setvar_helper(c, "SS7_CALLING_PARTY_CATEGORY", tmp);
 	/* Clear this after we set it */
-	p->call_ref_pc = 0;
+	p->calling_party_cat = 0;
 
 	if (!ast_strlen_zero(p->redirecting_num)) {
 		pbx_builtin_setvar_helper(c, "SS7_REDIRECTING_NUMBER", p->redirecting_num);