diff --git a/quic/core/quic_utils.cc b/quic/core/quic_utils.cc
index 24d1eb8..ddf5d3f 100644
--- a/quic/core/quic_utils.cc
+++ b/quic/core/quic_utils.cc
@@ -469,8 +469,7 @@
 // static
 bool QuicUtils::VariableLengthConnectionIdAllowedForVersion(
     QuicTransportVersion version) {
-  // TODO(dschinazi): Allow in appropriate version when supported.
-  return false;
+  return version == QUIC_VERSION_99;
 }
 
 // static