diff --git a/examples/matlab/PlanarSLAMExample_easy.m b/examples/matlab/PlanarSLAMExample_easy.m
index 85a517ede..a46217deb 100644
--- a/examples/matlab/PlanarSLAMExample_easy.m
+++ b/examples/matlab/PlanarSLAMExample_easy.m
@@ -80,6 +80,6 @@ gfg = graph.linearize(result,ord);
 denseAb = gfg.denseJacobian
 
 %% Get sparse matrix
-IJS = gfg.sparse([12 7 4 10 1 14]');
+IJS = gfg.sparse();
 Ab=sparse(IJS(1,:),IJS(2,:),IJS(3,:));
-spy(Ab);
+spy(Ab(:,1:end-1));
diff --git a/gtsam.h b/gtsam.h
index fd6bd962e..c45fbf48c 100644
--- a/gtsam.h
+++ b/gtsam.h
@@ -110,7 +110,7 @@ class GaussianFactorGraph {
 	void combine(const GaussianFactorGraph& lfg);
   Matrix denseJacobian() const;
   Matrix denseHessian() const;
-	Matrix sparse(Vector columnIndices) const;
+	Matrix sparse() const;
 };
 
 class Landmark2 {