1 files changed, 2 insertions, 1 deletions

diff --git a/src/yuescript/yue_parser.cpp b/src/yuescript/yue_parser.cpp
index 0b7f79e..6ecd369 100755
--- a/src/yuescript/yue_parser.cpp
+++ b/src/yuescript/yue_parser.cpp
@@ -492,7 +492,8 @@ YueParser::YueParser() {
         ClassDecl =
                 key("class") >> not_(expr(':')) >>
                 -Assignable >>
-                -(key("extends")  >> PreventIndent >> ensure(Exp, PopIndent)) >>
+                -(key("extends") >> PreventIndent >> ensure(Exp, PopIndent)) >>
+                -(key("using") >> PreventIndent >> ensure(ExpList, PopIndent)) >>
                 -ClassBlock;
 
         global_values = NameList >> -(sym('=') >> (TableBlock | ExpListLow));