diff --git a/src/PermissionRegistrar.php b/src/PermissionRegistrar.php
index 56c7415a..3dcaac17 100644
--- a/src/PermissionRegistrar.php
+++ b/src/PermissionRegistrar.php
@@ -109,7 +109,7 @@ public function setPermissionsTeamId($id): void
     }
 
     /**
-     * @return int|string
+     * @return int|string|null
      */
     public function getPermissionsTeamId()
     {
diff --git a/src/helpers.php b/src/helpers.php
index d1aae1ee..55048d75 100644
--- a/src/helpers.php
+++ b/src/helpers.php
@@ -14,7 +14,7 @@ function getModelForGuard(string $guard)
 
 if (! function_exists('setPermissionsTeamId')) {
     /**
-     * @param  int|string|\Illuminate\Database\Eloquent\Model  $id
+     * @param  int|string|null|\Illuminate\Database\Eloquent\Model  $id
      */
     function setPermissionsTeamId($id)
     {
@@ -24,7 +24,7 @@ function setPermissionsTeamId($id)
 
 if (! function_exists('getPermissionsTeamId')) {
     /**
-     * @return int|string
+     * @return int|string|null
      */
     function getPermissionsTeamId()
     {