diff --git a/modules/rtp_rtcp/source/rtp_sender.cc b/modules/rtp_rtcp/source/rtp_sender.cc
index 9b977fa..142039d 100644
--- a/modules/rtp_rtcp/source/rtp_sender.cc
+++ b/modules/rtp_rtcp/source/rtp_sender.cc
@@ -95,8 +95,6 @@
     CreateExtensionSize<InbandComfortNoiseExtension>(),
     CreateExtensionSize<TransmissionOffset>(),
     CreateExtensionSize<TransportSequenceNumber>(),
-    CreateMaxExtensionSize<RtpStreamId>(),
-    CreateMaxExtensionSize<RepairedRtpStreamId>(),
     CreateMaxExtensionSize<RtpMid>(),
 };