2 files changed, 7 insertions, 3 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8d5908f..402e5c9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
-project(yue CXX)
 cmake_minimum_required(VERSION 3.1)
+project(yue CXX)
 
 set(LUA_LIBDIR ${LUA_INCDIR}/../lib ${LUA_INCDIR}/../../lib)
 set(LUA_INCLUDE_DIR "${LUA_INCDIR}")
diff --git a/src/yuescript/yue_ast.cpp b/src/yuescript/yue_ast.cpp
index d9f8419..f243d24 100644
--- a/src/yuescript/yue_ast.cpp
+++ b/src/yuescript/yue_ast.cpp
@@ -116,7 +116,11 @@ std::string UpdateOp_t::to_string(void* ud) const {
 }
 std::string BinaryOperator_t::to_string(void* ud) const {
         auto info = reinterpret_cast<YueFormat*>(ud);
-        return info->convert(this);
+        auto op = info->convert(this);
+        if (op == "!="sv) {
+                return "~="s;
+        }
+        return op;
 }
 std::string UnaryOperator_t::to_string(void* ud) const {
         auto info = reinterpret_cast<YueFormat*>(ud);
@@ -1041,7 +1045,7 @@ std::string FnArgsDef_t::to_string(void* ud) const {
         if (shadowOption) {
                 line += (line.empty() ? ""s : " "s) + shadowOption->to_string(ud);
         }
-        return '(' + line + ')';
+        return line.empty() ? ""s : '(' + line + ')';
 }
 std::string FunLit_t::to_string(void* ud) const {
         auto info = reinterpret_cast<YueFormat*>(ud);