diff --git a/gtsam/navigation/CombinedImuFactor.h b/gtsam/navigation/CombinedImuFactor.h
index 0c7ba7547..ed94750b7 100644
--- a/gtsam/navigation/CombinedImuFactor.h
+++ b/gtsam/navigation/CombinedImuFactor.h
@@ -211,7 +211,7 @@ public:
    * @param measuredAcc Measured acceleration (in body frame, as given by the
    * sensor)
    * @param measuredOmega Measured angular velocity (as given by the sensor)
-   * @param deltaT Time interval between two consecutive IMU measurements
+   * @param dt Time interval between two consecutive IMU measurements
    */
   void integrateMeasurement(const Vector3& measuredAcc,
       const Vector3& measuredOmega, const double dt) override;