diff --git a/gtsam/linear/IterativeSolver.h b/gtsam/linear/IterativeSolver.h
index bf11b3986..3c397c9e9 100644
--- a/gtsam/linear/IterativeSolver.h
+++ b/gtsam/linear/IterativeSolver.h
@@ -104,7 +104,7 @@ namespace gtsam {
   class GTSAM_EXPORT KeyInfoEntry : public boost::tuple<size_t, size_t, size_t> {
   public:
     typedef boost::tuple<Key,size_t,Key> Base;
-	KeyInfoEntry(){}
+    KeyInfoEntry(){}
     KeyInfoEntry(size_t idx, size_t d, Key start) : Base(idx, d, start) {}
     const size_t index() const { return this->get<0>(); }
     const size_t dim() const { return this->get<1>(); }
diff --git a/gtsam/linear/SubgraphPreconditioner.h b/gtsam/linear/SubgraphPreconditioner.h
index 5f8b5ade1..86bee2188 100644
--- a/gtsam/linear/SubgraphPreconditioner.h
+++ b/gtsam/linear/SubgraphPreconditioner.h
@@ -157,8 +157,6 @@ namespace gtsam {
     Weights weights(const GaussianFactorGraph &gfg) const;
     SubgraphBuilderParameters parameters_;
 
-  private:
-    SubgraphBuilder() {};
   };
 
   /*******************************************************************************************/