diff --git a/gtsam.h b/gtsam.h
index f294f8d3e..9cd347522 100644
--- a/gtsam.h
+++ b/gtsam.h
@@ -200,8 +200,8 @@ class SharedDiagonal {
 #include <gtsam/linear/SharedGaussian.h>
 class SharedNoiseModel {
 	// FIXME: this generates only one constructor because "SharedDiagonal" and "SharedGaussian" both start with 'S'
-	SharedNoiseModel(const SharedDiagonal& model);
-	SharedNoiseModel(const SharedGaussian& model);
+//	SharedNoiseModel(const SharedDiagonal& model); // FIXME: constructor doesn't exist
+//	SharedNoiseModel(const SharedGaussian& model); // FIXME: constructor doesn't exist
 };
 
 class VectorValues {
diff --git a/gtsam/inference/FactorGraph-inl.h b/gtsam/inference/FactorGraph-inl.h
index 3b3d568bd..3d791e9f0 100644
--- a/gtsam/inference/FactorGraph-inl.h
+++ b/gtsam/inference/FactorGraph-inl.h
@@ -22,7 +22,6 @@
 
 #pragma once
 
-#include <gtsam/inference/FactorGraph.h>
 #include <gtsam/inference/graph-inl.h>
 #include <gtsam/inference/BayesTree.h>
 #include <gtsam/base/DSF.h>
@@ -41,9 +40,9 @@
 #include <stdexcept>
 #include <functional>
 
-#define INSTANTIATE_FACTOR_GRAPH(F) \
-  template class FactorGraph<F>; \
-  template FactorGraph<F> combine(const FactorGraph<F>&, const FactorGraph<F>&)
+//#define INSTANTIATE_FACTOR_GRAPH(F) \
+//  template class FactorGraph<F>; \
+//  template FactorGraph<F> combine(const FactorGraph<F>&, const FactorGraph<F>&)
 
 using namespace std;