diff --git a/corsika/modules/Sibyll.hpp b/corsika/modules/Sibyll.hpp
index 9737e260d4d3628e05b4914112304307b8ef2eb7..8d781def6b124e179ec0ad0eb2abe9955de242dd 100644
--- a/corsika/modules/Sibyll.hpp
+++ b/corsika/modules/Sibyll.hpp
@@ -43,7 +43,7 @@ namespace corsika::sibyll {
         public InteractionProcess<NuclearInteraction<TEnvironment, TNucleonModel>> {
   public:
     NuclearInteraction(TNucleonModel& model, TEnvironment const& env)
-        : NuclearInteractionModel<TNucleonModel, TEnvironment>(model, env) {}
+        : NuclearInteractionModel<TEnvironment, TNucleonModel>(model, env) {}
   };
 
 } // namespace corsika::sibyll