diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp
index fbca71f2980..4ed54eabb11 100644
--- a/modules/gdscript/gdscript_parser.cpp
+++ b/modules/gdscript/gdscript_parser.cpp
@@ -3497,6 +3497,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 			} break;
 			case GDScriptTokenizer::TK_PR_CLASS_NAME: {
 
+				_mark_line_as_safe(tokenizer->get_token_line());
 				if (p_class->owner) {
 					_set_error("'class_name' is only valid for the main class namespace.");
 					return;