diff --git a/corsika/detail/modules/pythia8/Random.inl b/corsika/detail/modules/pythia8/Random.inl
new file mode 100644
index 0000000000000000000000000000000000000000..cfd19bb19cb768a79c303760e34733f5e23f0f15
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+++ b/corsika/detail/modules/pythia8/Random.inl
@@ -0,0 +1,19 @@
+/*
+ * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ *
+ * See file AUTHORS for a list of contributors.
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * Licence version 3 (GPL Version 3). See file LICENSE for a full version of
+ * the license.
+ */
+
+#pragma once
+
+#include <corsika/modules/pythia8/Random.hpp>
+
+namespace corsika::pythia8 {
+
+  double Random::flat() { return fDist(fRNG); }
+
+} // namespace corsika::pythia8