diff --git a/netwerk/dns/TRRService.cpp b/netwerk/dns/TRRService.cpp
index 192ac561aa7f..0079feed6bdb 100644
--- a/netwerk/dns/TRRService.cpp
+++ b/netwerk/dns/TRRService.cpp
@@ -99,7 +99,7 @@ bool
 TRRService::Enabled()
 {
   if (mConfirmationState == CONFIRM_INIT &&
-      (!mWaitForCaptive || mCaptiveIsPassed)) {
+      (!mWaitForCaptive || mCaptiveIsPassed || (mMode == MODE_TRRONLY))) {
     LOG(("TRRService::Enabled => CONFIRM_TRYING\n"));
     mConfirmationState = CONFIRM_TRYING;
   }