diff --git a/quic/core/quic_version_manager.cc b/quic/core/quic_version_manager.cc
index 8886afb..49aee67 100644
--- a/quic/core/quic_version_manager.cc
+++ b/quic/core/quic_version_manager.cc
@@ -15,6 +15,7 @@
 QuicVersionManager::QuicVersionManager(
     ParsedQuicVersionVector supported_versions)
     : enable_version_99_(GetQuicReloadableFlag(quic_enable_version_99)),
+      enable_version_48_(GetQuicReloadableFlag(quic_enable_version_48)),
       enable_version_47_(GetQuicReloadableFlag(quic_enable_version_47)),
       disable_version_44_(GetQuicReloadableFlag(quic_disable_version_44)),
       disable_version_39_(GetQuicReloadableFlag(quic_disable_version_39)),
@@ -38,11 +39,13 @@
 
 void QuicVersionManager::MaybeRefilterSupportedVersions() {
   if (enable_version_99_ != GetQuicReloadableFlag(quic_enable_version_99) ||
+      enable_version_48_ != GetQuicReloadableFlag(quic_enable_version_48) ||
       enable_version_47_ != GetQuicReloadableFlag(quic_enable_version_47) ||
       disable_version_44_ != GetQuicReloadableFlag(quic_disable_version_44) ||
       disable_version_39_ != GetQuicReloadableFlag(quic_disable_version_39) ||
       enable_tls_ != GetQuicFlag(FLAGS_quic_supports_tls_handshake)) {
     enable_version_99_ = GetQuicReloadableFlag(quic_enable_version_99);
+    enable_version_48_ = GetQuicReloadableFlag(quic_enable_version_48);
     enable_version_47_ = GetQuicReloadableFlag(quic_enable_version_47);
     disable_version_44_ = GetQuicReloadableFlag(quic_disable_version_44);
     disable_version_39_ = GetQuicReloadableFlag(quic_disable_version_39);