diff --git a/py/path/local.py b/py/path/local.py
index c464abeba..e6d5c5606 100644
--- a/py/path/local.py
+++ b/py/path/local.py
@@ -535,7 +535,7 @@ class LocalPath(FSBase):
                 mod.__file__ = str(self)
                 sys.modules[modname] = mod
                 try:
-                    execfile(str(self), mod.__dict__)
+                    py.builtin.execfile(str(self), mod.__dict__)
                 except:
                     del sys.modules[modname]
                     raise
diff --git a/py/rest/latex.py b/py/rest/latex.py
index d2c6f7f1f..67816f128 100644
--- a/py/rest/latex.py
+++ b/py/rest/latex.py
@@ -81,7 +81,7 @@ def process_configfile(configfile, debug=False):
     path = configfile.dirpath()
     configfile_dic = {}
     py.std.sys.path.insert(0, str(path))
-    execfile(str(configfile), configfile_dic)
+    py.builtin.execfile(str(configfile), configfile_dic)
     pagebreak = configfile_dic.get("pagebreak", False)
     rest_sources = [py.path.local(p)
                     for p in configfile_dic['rest_sources']]