diff --git a/vm.cpp b/vm.cpp
index cd40a5ee3..179a47b91 100644
--- a/vm.cpp
+++ b/vm.cpp
@@ -524,7 +524,7 @@ void doTests(json_spirit::mValue& v, bool _fillin)
 		try
 		{
 			if (useJit)
-				output = jit.go(fev);
+				output = jit.go(fev).toVector();
 			else
 				output = interpreter.go(fev).toVector();
 		}