diff --git a/gtsam/nonlinear/NonlinearFactor.h b/gtsam/nonlinear/NonlinearFactor.h
index a01cead24..19c9c6988 100644
--- a/gtsam/nonlinear/NonlinearFactor.h
+++ b/gtsam/nonlinear/NonlinearFactor.h
@@ -36,7 +36,7 @@
 
 /**
  * Macro to add a standard clone function to a derived factor
- * @DEPRECIATED: will go away shortly - just add the clone function directly
+ * @DEPRECATED: will go away shortly - just add the clone function directly
  */
 #define ADD_CLONE_NONLINEAR_FACTOR(Derived) \
   virtual gtsam::NonlinearFactor::shared_ptr clone() const { \