diff --git a/libraries/AP_NavEKF2/AP_NavEKF2.h b/libraries/AP_NavEKF2/AP_NavEKF2.h
index 55cadf1641..ee8e13f711 100644
--- a/libraries/AP_NavEKF2/AP_NavEKF2.h
+++ b/libraries/AP_NavEKF2/AP_NavEKF2.h
@@ -491,7 +491,7 @@ private:
     uint64_t imuSampleTime_us;
     
     struct {
-        uint32_t last_function_call;  // last time getLastYawYawResetAngle was called
+        uint32_t last_function_call;  // last time getLastYawResetAngle was called
         bool core_changed;            // true when a core change happened and hasn't been consumed, false otherwise
         uint32_t last_primary_change; // last time a primary has changed
         float core_delta;             // the amount of yaw change between cores when a change happened