diff --git a/opkg-list-fields b/opkg-list-fields
index b2de5c3..648c546 100755
--- a/opkg-list-fields
+++ b/opkg-list-fields
@@ -3,13 +3,16 @@
 from __future__ import absolute_import
 from __future__ import print_function
 
-import sys, opkg
+import sys
+import opkg
+
 
 def usage():
-     sys.stderr.write("%s opk\n" % (sys.argv[0],))
-     sys.exit(-1)
+    sys.stderr.write("%s opk\n" % (sys.argv[0],))
+    sys.exit(-1)
+
 
 if (len(sys.argv) < 2):
-     usage()
+    usage()
 
 print(opkg.Package(sys.argv[1]).print(('md5','sha256')))