diff --git a/pjsip/src/pjsua-lib/pjsua_call.c b/pjsip/src/pjsua-lib/pjsua_call.c
index bb293b5c1..4b7e53c4f 100644
--- a/pjsip/src/pjsua-lib/pjsua_call.c
+++ b/pjsip/src/pjsua-lib/pjsua_call.c
@@ -2745,7 +2745,7 @@ PJ_DEF(pj_status_t) pjsua_call_answer2(pjsua_call_id call_id,
         goto on_return;
 
     if (!call->inv->invite_tsx ||
-        call->inv->invite_tsx->role != PJSIP_ROLE_UAC ||
+        call->inv->invite_tsx->role != PJSIP_ROLE_UAS ||
         call->inv->invite_tsx->state >= PJSIP_TSX_STATE_COMPLETED)
     {
         PJ_LOG(3,(THIS_FILE, "Unable to answer call (no incoming INVITE or "