diff --git a/Processes/Sibyll/ParticleConversion.h b/Processes/Sibyll/ParticleConversion.h
index a6b31fc8fa980bca74e8af5a62cf2443ca9bc883..4265441d3c6b30aa0905613144b48d57a9da776b 100644
--- a/Processes/Sibyll/ParticleConversion.h
+++ b/Processes/Sibyll/ParticleConversion.h
@@ -40,7 +40,7 @@ namespace corsika::process::sibyll {
   }
 
   bool constexpr CanInteract(corsika::particles::Code pCode) {
-    return GetSibyllXSCode(pCode) != 0;
+    return GetSibyllXSCode(pCode) > 0;
   }
 
 } // namespace corsika::process::sibyll