diff --git a/corsika/modules/radio/RadioProcess.hpp b/corsika/modules/radio/RadioProcess.hpp
index 08212717a1f4f22afcc802a252d42d9725394e69..1ad0e020a23095c4bfbdecefb0e0a52e13041846 100644
--- a/corsika/modules/radio/RadioProcess.hpp
+++ b/corsika/modules/radio/RadioProcess.hpp
@@ -74,7 +74,7 @@ namespace corsika {
      * @param track       The current track.
      */
     template <typename Particle, typename Track>
-    ProcessReturn doContinuous(Particle& particle, Track const& track) {
+    ProcessReturn doContinuous(Particle& particle, Track const& track, bool const) {
       //we want the following particles:
       // Code::Electron & Code::Positron & Code::Gamma