diff --git a/test/bytecode_3.5/03_async_await.pyc b/test/bytecode_3.5/03_async_await.pyc
index cc528841..291b14e3 100644
Binary files a/test/bytecode_3.5/03_async_await.pyc and b/test/bytecode_3.5/03_async_await.pyc differ
diff --git a/test/bytecode_3.6/03_async_await.pyc b/test/bytecode_3.6/03_async_await.pyc
index 0d50fe37..97f7ae15 100644
Binary files a/test/bytecode_3.6/03_async_await.pyc and b/test/bytecode_3.6/03_async_await.pyc differ
diff --git a/test/simple_source/bug35/03_async_await.py b/test/simple_source/bug35/03_async_await.py
index 7dec4df4..19d7ca95 100644
--- a/test/simple_source/bug35/03_async_await.py
+++ b/test/simple_source/bug35/03_async_await.py
@@ -1,8 +1,8 @@
 # Python 3.5+ async and await
-async def await_test():
+async def await_test(asyncio):
+    reader, writer = await asyncio.open_connection(80)
     await bar()
 
-
 async def afor_test():
 
     async for i in [1,2,3]:
diff --git a/uncompyle6/parsers/parse3.py b/uncompyle6/parsers/parse3.py
index 7e122fef..4c421935 100644
--- a/uncompyle6/parsers/parse3.py
+++ b/uncompyle6/parsers/parse3.py
@@ -453,6 +453,15 @@ class Python3Parser(PythonParser):
                 ('kwarg ' * args_kw) +
                 'expr ' * nak + token.type)
         self.add_unique_rule(rule, token.type, args_pos, customize)
+        if self.version >= 3.5:
+            rule = ('async_call_function ::= expr ' +
+                    ('pos_arg ' * args_pos) +
+                    ('kwarg ' * args_kw) +
+                    'expr ' * nak + token.type +
+                    ' GET_AWAITABLE LOAD_CONST YIELD_FROM')
+            self.add_unique_rule(rule, token.type, args_pos, customize)
+            self.add_unique_rule('expr ::= async_call_function', token.type, args_pos, customize)
+
         rule = ('classdefdeco2 ::= LOAD_BUILD_CLASS mkfunc %s%s_%d'
                 %  (('expr ' * (args_pos-1)), opname, args_pos))
         self.add_unique_rule(rule, token.type, args_pos, customize)
diff --git a/uncompyle6/semantics/pysource.py b/uncompyle6/semantics/pysource.py
index 57d80f08..03722cdd 100644
--- a/uncompyle6/semantics/pysource.py
+++ b/uncompyle6/semantics/pysource.py
@@ -332,6 +332,16 @@ class SourceWalker(GenericASTTraversal, object):
                             '%|async with %c as %c:\n%+%c%-', 0, 6, 7),
 
                     })
+                    def n_async_call_function(node):
+                        self.f.write('async ')
+                        node.type == 'call_function'
+                        p = self.prec
+                        self.prec = 80
+                        self.engine(('%c(%P)', 0, (1, -4, ', ', 100)), node)
+                        self.prec = p
+                        self.prune()
+                    self.n_async_call_function = n_async_call_function
+
                     def n_funcdef(node):
                         code_node = node[0][1]
                         if (code_node == 'LOAD_CONST' and iscode(code_node.attr)
@@ -1589,7 +1599,7 @@ class SourceWalker(GenericASTTraversal, object):
         beginning of this module for the how we interpret format specifications such as
         %c, %C, and so on.
         """
-        # self.println("----> ", startnode.type)
+        # self.println("----> ", startnode.type, ', ', entry[0])
         fmt = entry[0]
         arg = 1
         i = 0