diff --git a/gtsam/nonlinear/ISAM2Result.h b/gtsam/nonlinear/ISAM2Result.h
index b249af5c5..be91f17e2 100644
--- a/gtsam/nonlinear/ISAM2Result.h
+++ b/gtsam/nonlinear/ISAM2Result.h
@@ -175,6 +175,7 @@ struct ISAM2Result {
   /** Getters and Setters */
   size_t getVariablesRelinearized() const { return variablesRelinearized; }
   size_t getVariablesReeliminated() const { return variablesReeliminated; }
+  FactorIndices getNewFactorsIndices() const { return newFactorsIndices; }
   size_t getCliques() const { return cliques; }
   double getErrorBefore() const { return errorBefore ? *errorBefore : std::nan(""); }
   double getErrorAfter() const { return errorAfter ? *errorAfter : std::nan(""); }
diff --git a/gtsam/nonlinear/nonlinear.i b/gtsam/nonlinear/nonlinear.i
index 800208c33..326b84d16 100644
--- a/gtsam/nonlinear/nonlinear.i
+++ b/gtsam/nonlinear/nonlinear.i
@@ -682,6 +682,7 @@ class ISAM2Result {
   /** Getters and Setters for all properties */
   size_t getVariablesRelinearized() const;
   size_t getVariablesReeliminated() const;
+  FactorIndices getNewFactorsIndices() const;
   size_t getCliques() const;
   double getErrorBefore() const;
   double getErrorAfter() const;