diff --git a/.travis.yml b/.travis.yml
index 9f8dea7..8ab3a44 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,8 @@ matrix:
   include:
     - python: 3.5
       env: TOXENV=py35
+    - python: nightly
+      env: TOXENV=py36
 env:
   - TOXENV=py27
   - TOXENV=py33
diff --git a/hy/compiler.py b/hy/compiler.py
index d663d58..6e6e627 100644
--- a/hy/compiler.py
+++ b/hy/compiler.py
@@ -1516,7 +1516,8 @@ class HyASTCompiler(object):
             gen.append(ast.comprehension(
                 target=target,
                 iter=gen_res.force_expr,
-                ifs=[]))
+                ifs=[],
+                is_async=False))
 
         if cond.expr:
             gen[-1].ifs.append(cond.expr)
diff --git a/tox.ini b/tox.ini
index 2bea02d..0162794 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,pypy,py33,py34,py35,flake8
+envlist = py27,pypy,py33,py34,py35,py36,flake8
 skipsdist = True
 
 [testenv]