diff --git a/application/forms/Security/RoleForm.php b/application/forms/Security/RoleForm.php
index 0fb53e858..4edb33d07 100644
--- a/application/forms/Security/RoleForm.php
+++ b/application/forms/Security/RoleForm.php
@@ -93,7 +93,7 @@ class RoleForm extends ConfigForm
         foreach ($this->providedRestrictions as $name => $description) {
             $this->addElement(
                 'text',
-                $name,
+                str_replace('/', '_', $name),
                 array(
                     'label'         => $name,
                     'description'   => $description
@@ -129,6 +129,12 @@ class RoleForm extends ConfigForm
             ? String::trimSplit($role['permissions'])
             : null;
         $role['name'] = $name;
+        foreach (array_keys($role) as $key) {
+            // Slashes are not allowed in a form's element name
+            $value = $role[$key];
+            unset($role[$key]);
+            $role[str_replace('/', '_', $key)] = $value;
+        }
         $this->populate($role);
         return $this;
     }
@@ -230,6 +236,12 @@ class RoleForm extends ConfigForm
         if (isset($values['permissions'])) {
             $values['permissions'] = implode(', ', $values['permissions']);
         }
+        foreach (array_keys($values) as $key) {
+            // Slashes are not allowed in a form's element name
+            $value = $values[$key];
+            unset($values[$key]);
+            $values[str_replace('/', '_', $key)] = $value;
+        }
         return $values;
     }
 }