diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 345436681686f5f05d719e9640013acf3636b619..d88924d961eee64b04ff17d64508c372179c5ab8 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -5,6 +5,7 @@ file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/tests_data DESTINATION .)
 add_executable(test_mlip ${tests_src})
 target_link_libraries(test_mlip PRIVATE
     Catch2 tadah.mlip tadah.core tadah.models)
+target_include_directories(test_mlip PRIVATE ../include)
 
 if(TADAH_ENABLE_OPENMP) 
     find_package(OpenMP REQUIRED)