diff --git a/rc.lua b/rc.lua
index 69e29c7..8445fa7 100644
--- a/rc.lua
+++ b/rc.lua
@@ -474,7 +474,7 @@ globalkeys = awful.util.table.join(
         end, {description = "capture the screen", group="Fn Keys"}),
 
     awful.key({"Ctrl"}, "Print", function ()
-            awful.spawn.easy_async_with_shell('gnome-screenshot -f "`echo -n ' .. home .. '"/Images/Captures/Capture du " && date "+%Y-%m-%d %H:%M:%S"`.png"', function() end)
+            awful.spawn.easy_async_with_shell('gnome-screenshot -f "`echo -n ' .. home .. '"/Images/Captures/Capture du " && date "+%Y-%m-%d %H-%M-%S"`.png"', function() end)
         end, {description = "capture the screen", group="Fn Keys"}),
 
     awful.key({modkey}, "a", function ()