diff --git a/core/io/resource_loader.h b/core/io/resource_loader.h
index 2701caa3f47..68234728eec 100644
--- a/core/io/resource_loader.h
+++ b/core/io/resource_loader.h
@@ -231,7 +231,11 @@ public:
 	// Loaders can safely use this regardless which thread they are running on.
 	static void notify_dependency_error(const String &p_path, const String &p_dependency, const String &p_type) {
 		if (dep_err_notify) {
-			callable_mp_static(dep_err_notify).bind(p_path, p_dependency, p_type).call_deferred();
+			if (Thread::get_caller_id() == Thread::get_main_id()) {
+				dep_err_notify(p_path, p_dependency, p_type);
+			} else {
+				callable_mp_static(dep_err_notify).bind(p_path, p_dependency, p_type).call_deferred();
+			}
 		}
 	}
 	static void set_dependency_error_notify_func(DependencyErrorNotify p_err_notify) {