diff --git a/test/pack_unpack.cc b/test/pack_unpack.cc
index fe4625a5..ac47f2d9 100644
--- a/test/pack_unpack.cc
+++ b/test/pack_unpack.cc
@@ -31,7 +31,7 @@ struct myclass {
 	myclass() : num(0), str("default") { }
 
 	myclass(int num, const std::string& str) :
-		num(0), str("default") { }
+		num(num), str(str) { }
 
 	~myclass() { }