diff --git a/.travis.yml b/.travis.yml
index 6759546..17a2546 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -43,6 +43,8 @@ matrix:
     - env: TOX_SUFFIX="boto3"
     - env: TOX_SUFFIX="aiohttp"
       python: "pypy3.5-5.9.0"
+    - env: TOX_SUFFIX="aiohttp"
+      python: 3.4
   exclude:
     # Only run flakes on a single Python 2.x and a single 3.x
     - env: TOX_SUFFIX="flakes"
@@ -59,6 +61,7 @@ matrix:
       python: pypy
 python:
 - 2.7
+- 3.4
 - 3.5
 - 3.6
 - pypy
diff --git a/tox.ini b/tox.ini
index 865cd62..bd99f42 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = {py27,py35,py36,py37,pypy}-{flakes,requests27,httplib2,urllib3121,tornado4,boto3,aiohttp}
+envlist = {py27,py34,py35,py36,py37,pypy}-{flakes,requests27,httplib2,urllib3121,tornado4,boto3,aiohttp}
 
 [testenv:flakes]
 skipsdist = True
diff --git a/vcr/cassette.py b/vcr/cassette.py
index 3b6f54e..5683ddf 100644
--- a/vcr/cassette.py
+++ b/vcr/cassette.py
@@ -16,11 +16,13 @@ from .util import partition_dict
 
 try:
     from asyncio import iscoroutinefunction
-    from ._handle_coroutine import handle_coroutine
 except ImportError:
     def iscoroutinefunction(*args, **kwargs):
         return False
 
+if sys.version_info[:2] >= (3, 5):
+    from ._handle_coroutine import handle_coroutine
+else:
     def handle_coroutine(*args, **kwags):
         raise NotImplementedError('Not implemented on Python 2')