diff --git a/gtsam/geometry/PinholeCamera.h b/gtsam/geometry/PinholeCamera.h
index e2d0e6aec..b409c956d 100644
--- a/gtsam/geometry/PinholeCamera.h
+++ b/gtsam/geometry/PinholeCamera.h
@@ -496,7 +496,6 @@ private:
 };
 
 
-template<typename Calibration>
 template<typename Calibration>
 struct traits< PinholeCamera<Calibration> > : public internal::Manifold<PinholeCamera<Calibration> > {};