diff --git a/src/oca/python/Makefile b/src/oca/python/Makefile
index 863c741f31..66d76a6f8c 100644
--- a/src/oca/python/Makefile
+++ b/src/oca/python/Makefile
@@ -14,8 +14,7 @@
 # limitations under the License.
 
 # Use full path to ensure virtualenv compatibility
-PYTHON = $(shell which python2)
-PYTHON3 = $(shell which python3)
+PYTHON = $(shell which python3)
 GDS = $(shell which generateDS)
 PWD = $(shell pwd)
 
@@ -46,9 +45,6 @@ dist:
 install:
 	${PYTHON} setup.py install ${root}
 
-install3:
-	${PYTHON3} setup.py install ${root}
-
 doc:
 	mkdir -p doc
 	PYTHONPATH=$(PWD) pdoc --overwrite --html --html-no-source --html-dir doc pyone
diff --git a/src/oca/python/pyone/util.py b/src/oca/python/pyone/util.py
index 21425bdf45..c7e3091c8f 100644
--- a/src/oca/python/pyone/util.py
+++ b/src/oca/python/pyone/util.py
@@ -137,6 +137,6 @@ class TemplatedType(object):
     '''
     Mixin class for Templated bindings
     '''
-    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False, gds_collector_=None):
+    def _buildChildren(self, child_, node, nodeName_, fromsubclass_=False, gds_collector_=None):
         if not build_template_node(self, nodeName_, child_):
-            super(TemplatedType, self).buildChildren(child_,node,nodeName_,fromsubclass_,gds_collector_)
+            super(TemplatedType, self)._buildChildren(child_,node,nodeName_,fromsubclass_,gds_collector_)