diff --git a/gtsam/navigation/CombinedImuFactor.h b/gtsam/navigation/CombinedImuFactor.h
index 1a4ddd6ff..72d31b294 100644
--- a/gtsam/navigation/CombinedImuFactor.h
+++ b/gtsam/navigation/CombinedImuFactor.h
@@ -11,7 +11,7 @@
 
 /**
  *  @file  CombinedImuFactor.h
- *  @author Luca Carlone, Stephen Williams, Richard Roberts
+ *  @author Luca Carlone, Stephen Williams, Richard Roberts, Vadim Indelman
  **/
 
 #pragma once
diff --git a/gtsam/navigation/ImuFactor.h b/gtsam/navigation/ImuFactor.h
index 38e23d4a9..0ec4c56e2 100644
--- a/gtsam/navigation/ImuFactor.h
+++ b/gtsam/navigation/ImuFactor.h
@@ -11,7 +11,7 @@
 
 /**
  *  @file  ImuFactor.h
- *  @author Luca Carlone, Stephen Williams, Richard Roberts
+ *  @author Luca Carlone, Stephen Williams, Richard Roberts, Vadim Indelman
  **/
 
 #pragma once