diff --git a/Framework/ProcessSequence/ProcessSequence.h b/Framework/ProcessSequence/ProcessSequence.h
index 01d8d8d68aae2392f75c2a39e8846e0c8c383346..a1b92b0e3f9c27dd896012a16b56d0e063c3954f 100644
--- a/Framework/ProcessSequence/ProcessSequence.h
+++ b/Framework/ProcessSequence/ProcessSequence.h
@@ -227,8 +227,8 @@ namespace corsika::process {
     }
   };
 
-  /// the + operator assembles many BaseProcess, ContinuousProcess, and
-  /// InteractionProcess objects into a ProcessSequence, all combinatorics
+  /// the << operator assembles many BaseProcess, ContinuousProcess, and
+  /// Interaction/DecayProcess objects into a ProcessSequence, all combinatorics
   /// must be allowed, this is why we define a macro to define all
   /// combinations here:
 
@@ -255,6 +255,7 @@ namespace corsika::process {
   OPSEQ(DecayProcess, ContinuousProcess)
   OPSEQ(DecayProcess, DecayProcess)
 
+  /// marker to identify objectas ProcessSequence
   template <typename A, typename B>
   struct is_process_sequence<corsika::process::ProcessSequence<A, B> > {
     static const bool value = true;
diff --git a/Processes/Sibyll/Decay.h b/Processes/Sibyll/Decay.h
index 5317324742db9227b7425510a7efb11e53b87865..23954fef70ffe62140074010a1207624b1cfcaa2 100644
--- a/Processes/Sibyll/Decay.h
+++ b/Processes/Sibyll/Decay.h
@@ -4,6 +4,7 @@
 #include <corsika/process/DecayProcess.h>
 #include <corsika/process/sibyll/ParticleConversion.h>
 #include <corsika/process/sibyll/SibStack.h>
+
 #include <corsika/setup/SetupStack.h>
 #include <corsika/setup/SetupTrajectory.h>
 
diff --git a/Processes/Sibyll/Interaction.h b/Processes/Sibyll/Interaction.h
index 80b4e4490dc6126fc0e1bfd35fda27166551ba40..9a5ad9b38a6da85c144b019cf6cf67e3101c844e 100644
--- a/Processes/Sibyll/Interaction.h
+++ b/Processes/Sibyll/Interaction.h
@@ -11,6 +11,7 @@
 #include <corsika/random/RNGManager.h>
 #include <corsika/units/PhysicalUnits.h>
 
+
 namespace corsika::process::sibyll {
 
   class Interaction : public corsika::process::InteractionProcess<Interaction> {
@@ -217,6 +218,7 @@ namespace corsika::process::sibyll {
           // running sibyll, filling stack
           sibyll_(kBeam, kTarget, sqs);
           // running decays
+          // setTrackedParticlesStable();
           decsib_();
           // print final state
           int print_unit = 6;