diff --git a/src/ast_handlers.hpp b/src/ast_handlers.hpp
index 0cb64f1..c596821 100644
--- a/src/ast_handlers.hpp
+++ b/src/ast_handlers.hpp
@@ -476,3 +476,5 @@
             parserContext.m_topLevelModulePresent = false;
     }
 };
+
+struct trailingSlash_class;