diff --git a/Processes/Sibyll/ProcessDecay.h b/Processes/Sibyll/ProcessDecay.h
index 20f493607d1dbff293caa6bedeedf52a16f59712..4989ab90a19f3b7f07080dc2647dad1bfa5cf21f 100644
--- a/Processes/Sibyll/ProcessDecay.h
+++ b/Processes/Sibyll/ProcessDecay.h
@@ -32,9 +32,17 @@ public:
       t0 = 2.6e-8 * 1_s;
       break;
       
+    case corsika::particles::Code::PiMinus :
+      t0 = 2.6e-8 * 1_s;
+      break;
+
     case corsika::particles::Code::KPlus :
       t0 = 1.e-5 * 1_s;
       break;
+
+    case corsika::particles::Code::KMinus :
+      t0 = 1.e-5 * 1_s;
+      break;
       
     default:
       t0 = 1.e8 * 1_s;
@@ -51,6 +59,7 @@ public:
   
   template <typename Particle, typename Stack>
   void DoDiscrete(Particle& p, Stack& s) const {
+    
   }
   
   template <typename Particle, typename Stack>