diff --git a/Stack/History/Event.hpp b/Stack/History/Event.hpp
index de613116406dad9fffd564052f9f42094ac199ff..fb307e5e25359a0e2f633634ab9167db7fdf7fb1 100644
--- a/Stack/History/Event.hpp
+++ b/Stack/History/Event.hpp
@@ -13,7 +13,6 @@
 #include <corsika/stack/history/EventType.hpp>
 #include <corsika/stack/history/SecondaryParticle.hpp>
 
-#include <iostream>
 #include <memory>
 #include <optional>
 #include <vector>
diff --git a/Stack/History/HistoryObservationPlane.cpp b/Stack/History/HistoryObservationPlane.cpp
index e8a8e06a9c605f9af5d334219d6762321ee5b84d..6ad06096005fc5aedb73b3983705617c0ba6a16f 100644
--- a/Stack/History/HistoryObservationPlane.cpp
+++ b/Stack/History/HistoryObservationPlane.cpp
@@ -12,7 +12,6 @@
 #include <boost/histogram/ostream.hpp>
 
 #include <fstream>
-#include <iostream>
 
 using namespace corsika::units::si;
 using namespace corsika::history;
@@ -80,4 +79,4 @@ void HistoryObservationPlane::fillHistoryHistogram(
   histogram_(intCounter);
 }
 
-void HistoryObservationPlane::print() { std::cout << histogram_ << std::endl; }
+void HistoryObservationPlane::print() { C8LOG_INFO(histogram_); }
diff --git a/Stack/History/testHistoryStack.cc b/Stack/History/testHistoryStack.cc
index ed61b83b6435b822a6eda7b490ffb6448a8dca8e..648ba224b68eb02e14c0468b83f563c28ee49862 100644
--- a/Stack/History/testHistoryStack.cc
+++ b/Stack/History/testHistoryStack.cc
@@ -12,8 +12,6 @@
 
 #include <catch2/catch.hpp>
 
-#include <iostream>
-
 using namespace corsika;
 using namespace corsika::stack;
 
diff --git a/Stack/History/testHistoryView.cc b/Stack/History/testHistoryView.cc
index 8d99e496ce2e5cf471d1ddea25cbbd51aef93b5a..1592254edeb62c57776790ed4870a16de4214c4c 100644
--- a/Stack/History/testHistoryView.cc
+++ b/Stack/History/testHistoryView.cc
@@ -18,8 +18,6 @@
 
 #include <catch2/catch.hpp>
 
-#include <iostream>
-
 using namespace corsika;
 using namespace corsika::geometry;
 using namespace corsika::units::si;