diff --git a/munin/webalizer_ b/munin/webalizer_
index 1182c977..950e51e8 100755
--- a/munin/webalizer_
+++ b/munin/webalizer_
@@ -32,11 +32,11 @@ total = reduce(add, navigateurs.values())
 
 usage = {}
 for nav in navigateurs.keys() :
-    pourcentage = navigateurs[nav]*100/total
+    pourcentage = navigateurs[nav]*100.0/total
     if pourcentage > 1 :
         usage[nav] = pourcentage
         
-reste = 100 - reduce(add, usage.values())
+reste = 100.0 - reduce(add, usage.values())
 
 try :
     arg = sys.argv[1]
@@ -68,6 +68,6 @@ else :
         nom = key
         for char in [' ','_','-','/','\\',':',';','.'] :
             nom = nom.replace(char, '')
-        print '%s.value %s' % (nom, usage[key])
-    print 'reste.value %s' % reste
+        print '%s.value %.2f' % (nom, usage[key])
+    print 'reste.value %.2f' % reste