diff --git a/p2p/base/p2p_transport_channel.cc b/p2p/base/p2p_transport_channel.cc
index 1434f9a8f0..2aa1ccb03f 100644
--- a/p2p/base/p2p_transport_channel.cc
+++ b/p2p/base/p2p_transport_channel.cc
@@ -142,6 +142,7 @@ P2PTransportChannel::P2PTransportChannel(
               true /* presume_writable_when_fully_relayed */,
               REGATHER_ON_FAILED_NETWORKS_INTERVAL,
               RECEIVING_SWITCHING_DELAY) {
+  RTC_DCHECK(allocator_ != nullptr);
   weak_ping_interval_ = GetWeakPingIntervalInFieldTrial();
   // Validate IceConfig even for mostly built-in constant default values in case
   // we change them.