diff --git a/src/pocketpy.h b/src/pocketpy.h
index c85267d5..d91199df 100644
--- a/src/pocketpy.h
+++ b/src/pocketpy.h
@@ -979,7 +979,7 @@ inline void init_builtins(VM* _vm) {
         for(auto& item : self.items()){
             if(!first) ss << ", ";
             first = false;
-            Str key = CAST(Str&, item.first).escape();
+            Str key = CAST(Str&, item.first).escape(false);
             Str value = CAST(Str&, vm->py_json(item.second));
             ss << key << ": " << value;
         }