diff --git a/src/serialize.h b/src/serialize.h
index 63658cd49d..d7d5e3ccc7 100644
--- a/src/serialize.h
+++ b/src/serialize.h
@@ -1110,7 +1110,13 @@ inline void WriteCompactSize(CSizeComputer &s, uint64_t nSize)
 }
 
 template <typename T>
-size_t GetSerializeSize(const T& t, int nType, int nVersion = 0)
+size_t GetSerializeSize(const T& t, int nVersion)
+{
+    return (CSizeComputer(0, nVersion) << t).size();
+}
+
+template <typename T>
+size_t GetSerializeSize(const T& t, int nType, int nVersion)
 {
     return (CSizeComputer(nType, nVersion) << t).size();
 }