diff --git a/sysid-application/src/main/native/include/sysid/telemetry/TelemetryManager.h b/sysid-application/src/main/native/include/sysid/telemetry/TelemetryManager.h
index 1cb1ac08..b636bc1d 100644
--- a/sysid-application/src/main/native/include/sysid/telemetry/TelemetryManager.h
+++ b/sysid-application/src/main/native/include/sysid/telemetry/TelemetryManager.h
@@ -233,6 +233,5 @@ class TelemetryManager {
       table->GetDoubleTopic("SysIdAckNumber").Subscribe(0);
 
   int m_ackNumber;
-  int m_updatedAckNumber;
 };
 }  // namespace sysid