diff --git a/CMakeLists.txt b/CMakeLists.txt
index 234cc565d493e70562f3ad9df6cd4c01689f15f3..924b690d26dff384f847c857a2d6c08e08d100f2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -129,18 +129,15 @@ if (WITH_EIGEN3)
   string (TOLOWER ${WITH_EIGEN3} WITH_EIGEN3_LOWER)
   if (WITH_EIGEN3_LOWER EQUAL "system")
     find_package (Eigen3 REQUIRED)
-    message ("opt1")
   else ()
     list (APPEND CMAKE_MODULE_PATH "${WITH_EIGEN3}/cmake")
     set (EIGEN3_INCLUDE_DIR "${WITH_EIGEN3}" CACHE PATH "eigen3 directory") 
     find_package (Eigen3 REQUIRED)
-    message ("opt2")
   endif ()
 else (WITH_EIGEN3)
   list (APPEND CMAKE_MODULE_PATH "${LOCAL_Eigen3_VERSION}/cmake")
   set (EIGEN3_INCLUDE_DIR "${LOCAL_Eigen3_VERSION}" CACHE PATH "eigen3 directory")
   find_package (Eigen3 REQUIRED)
-  message ("op3")
 endif (WITH_EIGEN3)
 
 # some final info output
diff --git a/COAST/ParticleConversion.h b/COAST/ParticleConversion.h
index c3f807c28c22f9ba3f078714fe76d9aed913c04c..f6f65e497d87865bdcae4ceed2142c1747fdb546 100644
--- a/COAST/ParticleConversion.h
+++ b/COAST/ParticleConversion.h
@@ -13,8 +13,6 @@
 
 #include <corsika/particles/ParticleProperties.h>
 
-#include <bitset2/bitset2.hpp>
-
 #include <map>
 
 namespace corsika::coast {