diff --git a/persoconf/commands/list.py b/persoconf/commands/list.py
index c50487f..b5bb657 100644
--- a/persoconf/commands/list.py
+++ b/persoconf/commands/list.py
@@ -35,10 +35,10 @@ def run(args, persoconf, logger):
             # Print the files too if asked so
             if args.show_files:
                 for f in app_list[app].files:
-                    if os.path.isdir(persoconf.path + "/" + app + "/" + f):
+                    if os.path.isdir( os.path.join(persoconf.path, app, f) ):
                         print("\t%s/" % f)
                     else:
-                        print("\t%s" % f)
+                        print("\t%s"  % f)
 
     # Some apps were specified, so we list them with their files
     else:
@@ -55,4 +55,4 @@ def run(args, persoconf, logger):
                 if os.path.isdir(persoconf.path + "/" + app + "/" + f):
                     print("\t%s/" % f)
                 else:
-                    print("\t%s" % f)
+                    print("\t%s"  % f)