diff --git a/CMakeLists.txt b/CMakeLists.txt
index af736a19..adf31faf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,7 +66,6 @@ endif()
 add_subdirectory(src)
 add_subdirectory(examples)
 add_subdirectory(experiments)
-add_subdirectory(exe)
 
 if (BUILD_TESTS)
     add_subdirectory(tests)
diff --git a/include/dlplan/utils/dynamic_bitset.h b/include/dlplan/utils/dynamic_bitset.h
index 9c66e60c..60d136dc 100644
--- a/include/dlplan/utils/dynamic_bitset.h
+++ b/include/dlplan/utils/dynamic_bitset.h
@@ -3,8 +3,6 @@
 
 #include "hash.h"
 
-#include <boost/serialization/vector.hpp>
-
 #include <cassert>
 #include <limits>
 #include <vector>