diff --git a/bureau/class/m_admin.php b/bureau/class/m_admin.php
index f13aa0bf..a821d6b1 100644
--- a/bureau/class/m_admin.php
+++ b/bureau/class/m_admin.php
@@ -510,7 +510,7 @@ class m_admin {
       }
     }
     $login=strtolower($login);
-    if (!preg_match("#^[a-z0-9\-]+$#",$login)) { //$
+    if (!preg_match("#^[a-z0-9]+$#",$login)) { //$
       $err->raise("admin", _("Login can only contains characters a-z and 0-9"));
       return false;
     }
diff --git a/src/fixperms.sh b/src/fixperms.sh
index e965f5f4..7a81ee9f 100755
--- a/src/fixperms.sh
+++ b/src/fixperms.sh
@@ -42,7 +42,7 @@ while getopts "l:u:f:d:" optname
 do
   case "$optname" in
   "l")
-    if [[ "$OPTARG" =~ ^[a-zA-Z0-9_\-]+$ ]] ; then
+    if [[ "$OPTARG" =~ ^[a-zA-Z0-9_]+$ ]] ; then
       query="SELECT uid,login FROM membres WHERE login LIKE '$OPTARG'"
     else	
       echo "Bad login provided"
diff --git a/src/functions.sh b/src/functions.sh
index c4d46795..e1d576a1 100755
--- a/src/functions.sh
+++ b/src/functions.sh
@@ -68,7 +68,7 @@ echo $uid
 # Return the html path for a account name
 get_html_path_by_name() {
   local name="$1"
-  if [[ ! "$name" =~ ^([a-z0-9\-]+)$ ]] ; then
+  if [[ ! "$name" =~ ^([a-z0-9]+)$ ]] ; then
     # Error on error flux
     echo "Account name is incorrect." >&2
     exit 2