diff --git a/corsika/detail/modules/sibyll/NuclearInteraction.inl b/corsika/detail/modules/sibyll/NuclearInteraction.inl
index ccdd56b2d757eda8978eb108f6c039ae6f0b0662..a75207f1c1372abfce16ff8f3a65f6e04140ccf0 100644
--- a/corsika/detail/modules/sibyll/NuclearInteraction.inl
+++ b/corsika/detail/modules/sibyll/NuclearInteraction.inl
@@ -499,18 +499,17 @@ namespace corsika::sibyll {
     // in pf in common fragments, neglected
     fragm_(kATarget, kAProj, nIntProj, impactPar, nFragments, AFragments);
 
-    // this should not occur but well :)
+    // this should not occur but well :)  (LCOV_EXCL_START)
     if (nFragments > (int)getMaxNFragments())
       throw std::runtime_error("Number of nuclear fragments in NUCLIB exceeded!");
+    // (LCOV_EXCL_STOP)
 
     CORSIKA_LOG_DEBUG("number of fragments: " + std::to_string(nFragments));
-    for (int j = 0; j < nFragments; ++j)
-      CORSIKA_LOG_DEBUG("fragment {}: A={} px={} py={} pz={}", j, AFragments[j],
-                        fragments_.ppp[j][0], fragments_.ppp[j][1], fragments_.ppp[j][2]);
-
     CORSIKA_LOG_DEBUG("adding nuclear fragments to particle stack..");
     // put nuclear fragments on corsika stack
     for (int j = 0; j < nFragments; ++j) {
+      CORSIKA_LOG_DEBUG("fragment {}: A={} px={} py={} pz={}", j, AFragments[j],
+                        fragments_.ppp[j][0], fragments_.ppp[j][1], fragments_.ppp[j][2]);
       Code specCode;
       const auto nuclA = AFragments[j];
       // get Z from stability line
diff --git a/tests/modules/testSibyll.cpp b/tests/modules/testSibyll.cpp
index 5e23c07e21326e32f21fedba03484ab06e45126a..58e65000ee691eb69b95d2fc60252ccb2f34b987 100644
--- a/tests/modules/testSibyll.cpp
+++ b/tests/modules/testSibyll.cpp
@@ -283,7 +283,7 @@ TEST_CASE("SibyllInterface", "[processes]") {
   SECTION("NuclearInteractionInterface") {
 
     auto [stack, viewPtr] =
-        setup::testing::setup_stack(Code::Nucleus, 4, 2, 500_GeV,
+        setup::testing::setup_stack(Code::Nucleus, 8, 4, 900_GeV,
                                     (setup::Environment::BaseNodeType* const)nodePtr, cs);
     setup::StackView& view = *viewPtr;
     auto particle = stack->first();