diff --git a/fdbrpc/FlowTransport.actor.cpp b/fdbrpc/FlowTransport.actor.cpp
index f62b73be9b..3e8c0f0337 100644
--- a/fdbrpc/FlowTransport.actor.cpp
+++ b/fdbrpc/FlowTransport.actor.cpp
@@ -479,6 +479,7 @@ struct ConnectPacket {
 		serializer(ar, connectPacketLength);
 		if (connectPacketLength > sizeof(ConnectPacket) - sizeof(connectPacketLength)) {
 			ASSERT(!g_network->isSimulated());
+			TraceEvent("SerializationFailed").backtrace();
 			throw serialization_failed();
 		}
 
diff --git a/flow/serialize.cpp b/flow/serialize.cpp
index d51416a308..e4d78379a5 100644
--- a/flow/serialize.cpp
+++ b/flow/serialize.cpp
@@ -25,6 +25,7 @@
 _AssumeVersion::_AssumeVersion(ProtocolVersion version) : v(version) {
 	if (!version.isValid()) {
 		ASSERT(!g_network->isSimulated());
+		TraceEvent("SerializationFailed").backtrace();
 		throw serialization_failed();
 	}
 }
@@ -34,6 +35,7 @@ const void* BinaryReader::readBytes(int bytes) {
 	const char* e = b + bytes;
 	if (e > end) {
 		ASSERT(!g_network->isSimulated());
+		TraceEvent("SerializationFailed").backtrace();
 		throw serialization_failed();
 	}
 	begin = e;