diff --git a/test/bit_string_test.cpp b/test/bit_string_test.cpp
index d329beb..923d503 100644
--- a/test/bit_string_test.cpp
+++ b/test/bit_string_test.cpp
@@ -1,4 +1,4 @@
-#include <hei_bit_string.hpp>
+#include <util/hei_bit_string.hpp>
 
 #include "gtest/gtest.h"