diff --git a/hash/siphash.hpp b/hash/siphash.hpp
index 18e1b7de..88556061 100644
--- a/hash/siphash.hpp
+++ b/hash/siphash.hpp
@@ -23,7 +23,7 @@
 #include <type_traits>
 
 namespace util::hash {
-    template <int CompressionsV, int FinalisationsV>
+    template <int CompressionsV = 2, int FinalisationsV = 4>
     class siphash {
     public:
         using digest_t = std::uint64_t;