diff --git a/src/common.py b/src/common.py
index b9612639c..17b1a09ce 100644
--- a/src/common.py
+++ b/src/common.py
@@ -125,7 +125,8 @@ def open_url_in_browser(link):
     else:
         import os, sys
         version = sys.version[:3]
-        file = INSTALL_PREFIX + '/lib/python' + version + '/site-packages/deluge/browser.py'
+        file = os.path.join(INSTALL_PREFIX, 'lib', 'python' \
+                        + version, 'site-packages', 'deluge', 'browser.py')
         os.spawnlp(os.P_NOWAIT, 'python', 'python', file, link)
 
 def is_url(url):
diff --git a/src/info.py b/src/info.py
index 5b2b88f54..645b07edf 100644
--- a/src/info.py
+++ b/src/info.py
@@ -4,6 +4,7 @@
 import urllib
 import platform
 import gtk
+import os
 import common
 
 pygtk = '%i.%i.%i' %(gtk.pygtk_version[0],gtk.pygtk_version[1],gtk.pygtk_version[2])
@@ -12,6 +13,6 @@ urllib.urlopen("http://download.deluge-torrent.org/stats.php?processor=" + \
     platform.machine() + "&python=" + platform.python_version() \
     + "&os=" + platform.system() + "&pygtk=" + pygtk)
 
-f = open(common.CONFIG_DIR + '/infosent', 'w')
+f = open(os.path.join(common.CONFIG_DIR, 'infosent'), 'w')
 f.write("")
 f.close
diff --git a/src/interface.py b/src/interface.py
index 66b05fe00..ceea07363 100644
--- a/src/interface.py
+++ b/src/interface.py
@@ -129,10 +129,12 @@ class DelugeGTK:
             if os.path.exists(common.CONFIG_DIR + '/infosent'):
                 a=glob.glob(common.CONFIG_DIR + '/infosent')[0]
                 if  time.time() - os.stat(a)[8] >= 604800:
-                    file = common.INSTALL_PREFIX + '/lib/python' + py_version + '/site-packages/deluge/info.py'
+                    file = os.path.join(common.INSTALL_PREFIX, 'lib', 'python' \
+                        + py_version, 'site-packages', 'deluge', 'info.py')
                     os.spawnlp(os.P_NOWAIT, 'python', 'python', file, common.PROGRAM_VERSION)
             else:
-                file = common.INSTALL_PREFIX + '/lib/python' + py_version + '/site-packages/deluge/info.py'
+                file = os.path.join(common.INSTALL_PREFIX, 'lib', 'python' \
+                        + py_version, 'site-packages', 'deluge', 'info.py')
                 os.spawnlp(os.P_NOWAIT, 'python', 'python', file, common.PROGRAM_VERSION)