diff --git a/app/Permission.php b/app/Permission.php
index 794df01ab..a146dcf63 100644
--- a/app/Permission.php
+++ b/app/Permission.php
@@ -11,7 +11,7 @@ class Permission extends Model
      */
     public function roles()
     {
-        return $this->belongsToMany('BookStack\Permissions');
+        return $this->belongsToMany('BookStack\Role');
     }
 
     /**
diff --git a/app/Role.php b/app/Role.php
index 270e4e0b8..4e14db181 100644
--- a/app/Role.php
+++ b/app/Role.php
@@ -43,6 +43,15 @@ class Role extends Model
         $this->permissions()->attach($permission->id);
     }
 
+    /**
+     * Detach a single permission from this role.
+     * @param Permission $permission
+     */
+    public function detachPermission(Permission $permission)
+    {
+        $this->permissions()->detach($permission->id);
+    }
+
     /**
      * Get the role object for the specified role.
      * @param $roleName