diff --git a/wrap/tests/geometry.h b/wrap/tests/geometry.h
index 3fec21ab9..0646ff456 100644
--- a/wrap/tests/geometry.h
+++ b/wrap/tests/geometry.h
@@ -106,7 +106,7 @@ virtual class MyTemplate : MyBase {
   MyTemplate();
 
   template<ARG = {gtsam::Point2, gtsam::Point3, Vector, Matrix}>
-  void templatedMethod(const ARG& t);
+  ARG templatedMethod(const ARG& t);
 
   // Stress test templates and pointer combinations
   void accept_T(const T& value) const;