diff --git a/eo/src/pyeo/random_numbers.cpp b/eo/src/pyeo/random_numbers.cpp
index 100ac38e..7b6a483a 100644
--- a/eo/src/pyeo/random_numbers.cpp
+++ b/eo/src/pyeo/random_numbers.cpp
@@ -28,6 +28,11 @@ using namespace boost::python;
 
 using namespace boost::python;
 
+// initialize static constants
+const uint32_t eoRng::K(0x9908B0DFU);
+const int eoRng::M(397);
+const int eoRng::N(624);
+
 namespace eo
 {
     eoRng rng(time(0));