diff --git a/gtsam/gtsam.i b/gtsam/gtsam.i
index 6d77e8eda..c5504bb07 100644
--- a/gtsam/gtsam.i
+++ b/gtsam/gtsam.i
@@ -161,31 +161,31 @@ class FactorIndices {
 namespace utilities {
 
 #include <gtsam/nonlinear/utilities.h>
-gtsam::KeyList createKeyList(Vector I);
-gtsam::KeyList createKeyList(string s, Vector I);
-gtsam::KeyVector createKeyVector(Vector I);
-gtsam::KeyVector createKeyVector(string s, Vector I);
-gtsam::KeySet createKeySet(Vector I);
-gtsam::KeySet createKeySet(string s, Vector I);
-Matrix extractPoint2(const gtsam::Values& values);
-Matrix extractPoint3(const gtsam::Values& values);
+gtsam::KeyList createKeyList(gtsam::Vector I);
+gtsam::KeyList createKeyList(string s, gtsam::Vector I);
+gtsam::KeyVector createKeyVector(gtsam::Vector I);
+gtsam::KeyVector createKeyVector(string s, gtsam::Vector I);
+gtsam::KeySet createKeySet(gtsam::Vector I);
+gtsam::KeySet createKeySet(string s, gtsam::Vector I);
+gtsam::Matrix extractPoint2(const gtsam::Values& values);
+gtsam::Matrix extractPoint3(const gtsam::Values& values);
 gtsam::Values allPose2s(gtsam::Values& values);
-Matrix extractPose2(const gtsam::Values& values);
+gtsam::Matrix extractPose2(const gtsam::Values& values);
 gtsam::Values allPose3s(gtsam::Values& values);
-Matrix extractPose3(const gtsam::Values& values);
-Matrix extractVectors(const gtsam::Values& values, char c);
+gtsam::Matrix extractPose3(const gtsam::Values& values);
+gtsam::Matrix extractVectors(const gtsam::Values& values, char c);
 void perturbPoint2(gtsam::Values& values, double sigma, int seed = 42u);
 void perturbPose2(gtsam::Values& values, double sigmaT, double sigmaR,
                   int seed = 42u);
 void perturbPoint3(gtsam::Values& values, double sigma, int seed = 42u);
 void insertBackprojections(gtsam::Values& values,
                            const gtsam::PinholeCamera<gtsam::Cal3_S2>& c,
-                           Vector J, Matrix Z, double depth);
+                           gtsam::Vector J, gtsam::Matrix Z, double depth);
 void insertProjectionFactors(
-    gtsam::NonlinearFactorGraph& graph, size_t i, Vector J, Matrix Z,
+    gtsam::NonlinearFactorGraph& graph, size_t i, gtsam::Vector J, gtsam::Matrix Z,
     const gtsam::noiseModel::Base* model, const gtsam::Cal3_S2* K,
     const gtsam::Pose3& body_P_sensor = gtsam::Pose3());
-Matrix reprojectionErrors(const gtsam::NonlinearFactorGraph& graph,
+gtsam::Matrix reprojectionErrors(const gtsam::NonlinearFactorGraph& graph,
                           const gtsam::Values& values);
 gtsam::Values localToWorld(const gtsam::Values& local,
                            const gtsam::Pose2& base);