diff --git a/test/bit_string_test.cpp b/test/bit_string_test.cpp
index 8745911..e24a550 100644
--- a/test/bit_string_test.cpp
+++ b/test/bit_string_test.cpp
@@ -1,5 +1,6 @@
 #include <hei_user_defines.hpp>
 #include <util/hei_bit_string.hpp>
+
 #include "gtest/gtest.h"
 
 using namespace libhei;
diff --git a/test/hei_user_defines.hpp b/test/hei_user_defines.hpp
index eec606d..2ba5b8b 100644
--- a/test/hei_user_defines.hpp
+++ b/test/hei_user_defines.hpp
@@ -6,8 +6,8 @@
  *        will be used throughout this library.
  */
 
-#include <stdio.h>
 #include <assert.h>
+#include <stdio.h>
 
 #define HEI_INF(...) \
     { \
diff --git a/test/simulator/hei_sim_user_interface.cpp b/test/simulator/hei_sim_user_interface.cpp
index 073ae22..ad27981 100644
--- a/test/simulator/hei_sim_user_interface.cpp
+++ b/test/simulator/hei_sim_user_interface.cpp
@@ -1,6 +1,5 @@
-#include <hei_user_interface.hpp>
-
 #include <hei_includes.hpp>
+#include <hei_user_interface.hpp>
 
 namespace libhei
 {