diff --git a/mcrouter/lib/carbon/connection/ExternalCarbonConnectionImpl.h b/mcrouter/lib/carbon/connection/ExternalCarbonConnectionImpl.h
index 928e39375..d5e0bb04e 100644
--- a/mcrouter/lib/carbon/connection/ExternalCarbonConnectionImpl.h
+++ b/mcrouter/lib/carbon/connection/ExternalCarbonConnectionImpl.h
@@ -28,6 +28,7 @@ struct ExternalCarbonConnectionImplOptions {
   size_t maxOutstanding{0};
   bool maxOutstandingError{false};
   uint16_t portOverride{0};
+  uint16_t thriftPortOverride{0};
   bool enableLogging{false};
   uint32_t hourlyLogRate{3600};
   uint32_t maxLogBurstSize{500};