diff --git a/intranet/modules/impression/main.py b/intranet/modules/impression/main.py
index e814a030..292d84c5 100755
--- a/intranet/modules/impression/main.py
+++ b/intranet/modules/impression/main.py
@@ -24,7 +24,7 @@
 # Copyright (c) 2006 by www.crans.org                          
 # #############################################################
 
-import cherrypy, tempfile, shutil, os, commands
+import cherrypy, tempfile, shutil, os, commands, re
 import crans.impression
 import crans.impression.digicode
 import crans.impression.etat_imprimante
@@ -74,6 +74,8 @@ class main(ModuleBase):
         cherrypy.session['impression'] = None
         if submit == "Envoyer":
             try:
+                newFile.filename = re.sub("\s+", "_", newFile.filename)
+                newFile.filename = re.sub("[^\w\._]", "", newFile.filename)
                 self.savePDF(newFile)
                 data['fileName'] = newFile.filename.encode('ascii','replace').replace('?','_')
             except FileError, e: