diff --git a/libraries/SITL/SITL.h b/libraries/SITL/SITL.h
index 3006280a54..8a7a9f3571 100644
--- a/libraries/SITL/SITL.h
+++ b/libraries/SITL/SITL.h
@@ -147,9 +147,6 @@ public:
 
     struct sitl_fdm state;
 
-    // loop update rate in Hz
-    uint16_t update_rate_hz;
-
     // throttle when motors are active
     float throttle;