diff --git a/pc/jsep_transport_controller.cc b/pc/jsep_transport_controller.cc
index 4c351a69ef..e36ecafeed 100644
--- a/pc/jsep_transport_controller.cc
+++ b/pc/jsep_transport_controller.cc
@@ -854,6 +854,7 @@ RTCError JsepTransportController::ValidateContent(
   if (config_.rtcp_mux_policy ==
           PeerConnectionInterface::kRtcpMuxPolicyRequire &&
       content_info.type == cricket::MediaProtocolType::kRtp &&
+      !content_info.bundle_only &&
       !content_info.media_description()->rtcp_mux()) {
     return RTCError(RTCErrorType::INVALID_PARAMETER,
                     "The m= section with mid='" + content_info.name +
diff --git a/pc/jsep_transport_controller_unittest.cc b/pc/jsep_transport_controller_unittest.cc
index 5cb138b8e9..8aecf63c5d 100644
--- a/pc/jsep_transport_controller_unittest.cc
+++ b/pc/jsep_transport_controller_unittest.cc
@@ -2701,4 +2701,30 @@ TEST_F(JsepTransportControllerTest, RollbackAndAddToDifferentBundleGroup) {
   EXPECT_EQ(mid2_transport, mid3_transport);
 }
 
+// Test that a bundle-only offer without rtcp-mux in the bundle-only section
+// is accepted.
+TEST_F(JsepTransportControllerTest, BundleOnlySectionDoesNotNeedRtcpMux) {
+  CreateJsepTransportController(JsepTransportController::Config());
+  cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
+  bundle_group.AddContentName(kAudioMid1);
+  bundle_group.AddContentName(kVideoMid1);
+
+  auto offer = std::make_unique<cricket::SessionDescription>();
+  AddAudioSection(offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
+                  cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
+                  nullptr);
+  AddVideoSection(offer.get(), kVideoMid1, kIceUfrag1, kIcePwd1,
+                  cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
+                  nullptr);
+  offer->AddGroup(bundle_group);
+
+  // Remove rtcp-mux and set bundle-only on the second content.
+  offer->contents()[1].media_description()->set_rtcp_mux(false);
+  offer->contents()[1].bundle_only = true;
+
+  EXPECT_TRUE(
+      transport_controller_->SetRemoteDescription(SdpType::kOffer, offer.get())
+          .ok());
+}
+
 }  // namespace webrtc
diff --git a/pc/peer_connection.cc b/pc/peer_connection.cc
index 3f99c96f4d..59d38727dc 100644
--- a/pc/peer_connection.cc
+++ b/pc/peer_connection.cc
@@ -2570,7 +2570,8 @@ bool PeerConnection::ValidateBundleSettings(
     const cricket::ContentInfo* content = (&*citer);
     RTC_DCHECK(content != NULL);
     auto it = bundle_groups_by_mid.find(content->name);
-    if (it != bundle_groups_by_mid.end() && !content->rejected &&
+    if (it != bundle_groups_by_mid.end() &&
+        !(content->rejected || content->bundle_only) &&
         content->type == MediaProtocolType::kRtp) {
       if (!HasRtcpMuxEnabled(content))
         return false;
diff --git a/pc/peer_connection_jsep_unittest.cc b/pc/peer_connection_jsep_unittest.cc
index 851d9257e0..1369253ad6 100644
--- a/pc/peer_connection_jsep_unittest.cc
+++ b/pc/peer_connection_jsep_unittest.cc
@@ -2405,4 +2405,17 @@ TEST_F(PeerConnectionJsepTest,
   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());
 }
 
+TEST_F(PeerConnectionJsepTest, BundleOnlySectionDoesNotNeedRtcpMux) {
+  auto caller = CreatePeerConnection();
+  auto callee = CreatePeerConnection();
+  caller->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);
+  caller->AddTransceiver(cricket::MEDIA_TYPE_VIDEO);
+  auto offer = caller->CreateOffer();
+  // Remove rtcp-mux and set bundle-only on the second content.
+  offer->description()->contents()[1].media_description()->set_rtcp_mux(false);
+  offer->description()->contents()[1].bundle_only = true;
+
+  EXPECT_TRUE(callee->SetRemoteDescription(std::move(offer)));
+}
+
 }  // namespace webrtc