diff --git a/interface/web/admin/users_edit.php b/interface/web/admin/users_edit.php
index b8ccbf2d90a1764f25727b78b65e93cc70ebf705..470ebbbb31e0cdf3320765af8206e83e5eea92f5 100644
--- a/interface/web/admin/users_edit.php
+++ b/interface/web/admin/users_edit.php
@@ -57,6 +57,14 @@ class page_action extends tform_actions {
 			$app->tform->errorMessage .= $app->tform->wordbook['startmodule_err'];
 		}
 	}
+	
+	function onBeforeUpdate() {
+		global $app, $conf;
+		
+		if(!in_array($this->dataRecord['startmodule'],$this->dataRecord['modules'])) {
+			$app->tform->errorMessage .= $app->tform->wordbook['startmodule_err'];
+		}
+	}
 
 }