diff --git a/codegen.py b/codegen.py
index 113d9be..cd32d00 100644
--- a/codegen.py
+++ b/codegen.py
@@ -127,10 +127,18 @@ def write_comma():
                 self.visit(default)
         if node.vararg is not None:
             write_comma()
-            self.write('*' + node.vararg)
+            # python 3.5+ compatibility
+            if hasattr(node.vararg, 'arg'):
+                self.write('*' + node.vararg.arg)
+            else:
+                self.write('*' + node.vararg)
         if node.kwarg is not None:
             write_comma()
-            self.write('**' + node.kwarg)
+            # python 3.5+ compatibility
+            if hasattr(node.kwarg, 'arg'):
+                self.write('**' + node.kwarg.arg)
+            else:
+                self.write('**' + node.kwarg)
 
     def decorators(self, node):
         for decorator in node.decorator_list:
@@ -213,11 +221,12 @@ def paren_or_comma():
                 paren_or_comma()
                 self.write(keyword.arg + '=')
                 self.visit(keyword.value)
-            if node.starargs is not None:
+            # python 3.5 removes starargs & kwargs
+            if getattr(node, 'starargs', None) is not None:
                 paren_or_comma()
                 self.write('*')
                 self.visit(node.starargs)
-            if node.kwargs is not None:
+            if getattr(node, 'kwargs', None) is not None:
                 paren_or_comma()
                 self.write('**')
                 self.visit(node.kwargs)
@@ -383,11 +392,11 @@ def write_comma():
             write_comma()
             self.write(keyword.arg + '=')
             self.visit(keyword.value)
-        if node.starargs is not None:
+        if getattr(node, 'starargs', None) is not None:
             write_comma()
             self.write('*')
             self.visit(node.starargs)
-        if node.kwargs is not None:
+        if getattr(node, 'kwargs', None) is not None:
             write_comma()
             self.write('**')
             self.visit(node.kwargs)