diff --git a/gtsam/geometry/Similarity3.cpp b/gtsam/geometry/Similarity3.cpp
index c76b8eb32..fcaf0c874 100644
--- a/gtsam/geometry/Similarity3.cpp
+++ b/gtsam/geometry/Similarity3.cpp
@@ -180,7 +180,7 @@ Similarity3 Similarity3::Align(const vector<Pose3Pair> &abPosePairs) {
   Point3Pairs abPointPairs;
   rotations.reserve(n);
   abPointPairs.reserve(n);
-  // note that frame "i" is the i'th object/camera/etc body frame
+  // Below denotes the pose of the i'th object/camera/etc in frame "a" or frame "b"
   Pose3 aTi, bTi;
   for (const Pose3Pair &abPair : abPosePairs) {
     std::tie(aTi, bTi) = abPair;
diff --git a/gtsam/gtsam.i b/gtsam/gtsam.i
index 2ca57504c..007686360 100644
--- a/gtsam/gtsam.i
+++ b/gtsam/gtsam.i
@@ -470,8 +470,7 @@ class Point3 {
 };
 
 #include <gtsam/geometry/Point3.h>
-class Point3Pairs
-{
+class Point3Pairs {
   Point3Pairs();
   size_t size() const;
   bool empty() const;
@@ -810,8 +809,7 @@ class Pose3 {
 };
 
 #include <gtsam/geometry/Pose3.h>
-class Pose3Pairs
-{
+class Pose3Pairs {
   Pose3Pairs();
   size_t size() const;
   bool empty() const;