diff --git a/packages/fcl-json/tests/testjson.lpi b/packages/fcl-json/tests/testjson.lpi
index 88c148f56a..1b44493a39 100644
--- a/packages/fcl-json/tests/testjson.lpi
+++ b/packages/fcl-json/tests/testjson.lpi
@@ -72,6 +72,9 @@
         <TrashVariables Value="True"/>
       </Debugging>
     </Linking>
+    <Other>
+      <CustomOptions Value="-tunicodertl"/>
+    </Other>
   </CompilerOptions>
   <Debugging>
     <Exceptions Count="2">