diff --git a/corsika/modules/proposal/InteractionModel.hpp b/corsika/modules/proposal/InteractionModel.hpp
index 0ea0c4bae8f2c96e14a9f21067c1cc11602b7689..902713d41bb9f892f8c9e4b91089c95f574efbf7 100644
--- a/corsika/modules/proposal/InteractionModel.hpp
+++ b/corsika/modules/proposal/InteractionModel.hpp
@@ -81,7 +81,7 @@ namespace corsika::proposal {
                                      FourMomentum const& projectileP4);
 
   private:
-    THadronicModel& hadronicInteraction_;    
+    THadronicModel& hadronicInteraction_;
     static HEPEnergyType constexpr heHadronicModelThresholdLab_ =
         80. * 1e9 * electronvolt;
   };