diff --git a/setup.py b/setup.py
index 647c7e1250d3f04a1036e92b87fc316527fc777a..728143e0027525f596ca89c2305e633419d5c010 100755
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
 
-import itertools
 import sys
 
 from setuptools import setup, find_packages
@@ -17,11 +16,15 @@ REQUIREMENTS = {
     },
 }
 
+all_extras_require = [
+    req for reqlist in REQUIREMENTS['extras_require'].values() for req in reqlist
+]
 
+REQUIREMENTS['extras_require']['all_importers'] = all_extras_require
 REQUIREMENTS['tests_require'] = [
     'pytest',
     'PyYAML',
-    *itertools.chain(*REQUIREMENTS['extras_require'].values()),
+    *all_extras_require,
 ]
 
 setup(