diff --git a/gtsam/gtsam.i b/gtsam/gtsam.i
index 327574bf8..ce251802c 100644
--- a/gtsam/gtsam.i
+++ b/gtsam/gtsam.i
@@ -2360,12 +2360,12 @@ class Values {
                  gtsam::Cal3Bundler,
                  gtsam::Cal3Fisheye,
                  gtsam::Cal3Unified,
-		 gtsam::EssentialMatrix,
+                 gtsam::EssentialMatrix,
                  gtsam::PinholeCameraCal3_S2,
                  gtsam::PinholeCameraCal3Bundler,
                  gtsam::PinholeCameraCal3Fisheye,
                  gtsam::PinholeCameraCal3Unified,
-		 gtsam::imuBias::ConstantBias,
+                 gtsam::imuBias::ConstantBias,
                  gtsam::NavState,
                  Vector,
                  Matrix,