diff --git a/gtsam/geometry/Rot3.cpp b/gtsam/geometry/Rot3.cpp
index c9b351138..846e0e070 100644
--- a/gtsam/geometry/Rot3.cpp
+++ b/gtsam/geometry/Rot3.cpp
@@ -265,7 +265,6 @@ Point3 Rot3::unrotate(const Point3& p) const {
 Rot3 Rot3::slerp(double t, const Rot3& other) const {
   // amazingly simple in GTSAM :-)
   assert(t>=0 && t<=1);
-  cout << "slerp" << endl;
   Vector3 omega = localCoordinates(other, Rot3::EXPMAP);
   return retract(t * omega, Rot3::EXPMAP);
 }