diff --git a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
index 271781d08..d9a4e7ab9 100644
--- a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
+++ b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
@@ -682,7 +682,7 @@ qr/(?:(?:https?):\/\/(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.]
         },
         'customFunctions' => {
             'msgFail' => '__badCustomFuncName__',
-            'test'    => qr/^(?:\w+(?:\s+\w+)*)?$/,
+            'test'    => qr/^(?:\w+(?:::\w+)*(?:\s+\w+(?:::\w+)*)*)?$/,
             'type'    => 'text'
         },
         'dbiAuthChain' => {
@@ -1095,8 +1095,6 @@ qr/^(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-
                         )
                       )
                     {
-                        return 0, "__badCustomFuncName__ $f"
-                          unless $f =~ /^[a-zA-Z]\w*$/;
                         $s = "sub $f {1} $s";
                     }
                     eval $s;
diff --git a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
index 99e4ea20f..f7f6e32f0 100644
--- a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
+++ b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
@@ -225,7 +225,7 @@ sub attributes {
         },
         customFunctions => {
             type          => 'text',
-            test          => qr/^(?:\w+(?:\s+\w+)*)?$/,
+            test          => qr/^(?:\w+(?:::\w+)*(?:\s+\w+(?:::\w+)*)*)?$/,
             msgFail       => "__badCustomFuncName__",
             documentation => 'List of custom functions'
         },
@@ -900,8 +900,6 @@ sub attributes {
                         )
                       )
                     {
-                        return ( 0, "__badCustomFuncName__ $f" )
-                          unless ( $f =~ /^[a-zA-Z]\w*$/ );
                         $s = "sub $f {1} $s";
                     }
                     eval $s;