diff --git a/setup.cfg b/setup.cfg
index 660c2822..cfef68eb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,21 +9,21 @@ home-page = https://launchpad.net/taskflow
 keywords = reliable,tasks,execution,parallel,dataflow,workflows,distributed
 requires-python = >=2.6
 classifier =
-        Development Status :: 4 - Beta
-        Environment :: OpenStack
-        Intended Audience :: Developers
-        Intended Audience :: Information Technology
-        License :: OSI Approved :: Apache Software License
-        Operating System :: POSIX :: Linux
-        Programming Language :: Python
-        Programming Language :: Python :: 2
-        Programming Language :: Python :: 2.6
-        Programming Language :: Python :: 2.7
-        Programming Language :: Python :: 3
-        Programming Language :: Python :: 3.3
-        Programming Language :: Python :: 3.4
-        Topic :: Software Development :: Libraries
-        Topic :: System :: Distributed Computing
+    Development Status :: 4 - Beta
+    Environment :: OpenStack
+    Intended Audience :: Developers
+    Intended Audience :: Information Technology
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Programming Language :: Python
+    Programming Language :: Python :: 2
+    Programming Language :: Python :: 2.6
+    Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.3
+    Programming Language :: Python :: 3.4
+    Topic :: Software Development :: Libraries
+    Topic :: System :: Distributed Computing
 
 [global]
 setup-hooks =