diff --git a/python-examples/ros-poses-convert.py b/python-examples/ros-poses-convert.py
index 1ecbd7a237..5a61484ec5 100755
--- a/python-examples/ros-poses-convert.py
+++ b/python-examples/ros-poses-convert.py
@@ -66,3 +66,7 @@
 print('mrpt PDF mr3       : ' + str(mr3))
 print('mrpt PDF mr3b      : ' + str(mr3b))
 print('ros PDF r3b        : ' + str(r3b))
+
+a = mr3
+b = mr3
+c = a+b
diff --git a/python/python.conf b/python/python.conf
index 0ce34e94ce..ccba8abe7d 100644
--- a/python/python.conf
+++ b/python/python.conf
@@ -295,4 +295,6 @@
 # 
 -class std::map<long,unsigned int>
 -class std::map<unsigned int,long>
--class std::monostate
\ No newline at end of file
+-class std::monostate
+#
++function mrpt::poses::operator+(const mrpt::poses::CPose3DPDFGaussian&, const mrpt::poses::CPose3DPDFGaussian&)