diff --git a/setup.cfg b/setup.cfg
index cfe183c3..3cd13fba 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,13 +27,13 @@ url = http://www.github.com/spacetelescope/synphot_refactor
 edit_on_github = False
 github_project = spacetelescope/synphot_refactor
 classifiers =
-    Intended Audience :: Science/Research,
-    License :: OSI Approved :: BSD License,
-    Operating System :: OS Independent,
-    Programming Language :: C,
-    Programming Language :: Python :: 2.7,
-    Programming Language :: Python :: 3,
-    Topic :: Scientific/Engineering :: Astronomy,
+    Intended Audience :: Science/Research
+    License :: OSI Approved :: BSD License
+    Operating System :: OS Independent
+    Programming Language :: C
+    Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
+    Topic :: Scientific/Engineering :: Astronomy
     Topic :: Scientific/Engineering :: Physics
 
 [extension=synphot.synphot_utils]