diff --git a/unittest/utils/CMakeLists.txt b/unittest/utils/CMakeLists.txt
index a6d5545873..1881113dde 100644
--- a/unittest/utils/CMakeLists.txt
+++ b/unittest/utils/CMakeLists.txt
@@ -20,8 +20,12 @@ target_link_libraries(test_platform PRIVATE lammps GTest::GMockMain)
 add_test(NAME Platform COMMAND test_platform)
 
 if(PKG_LEPTON)
+  get_target_property(LEPTON_DEF lepton COMPILE_DEFINITONS)
+  get_target_property(LEPTON_INC lepton INCLUDE_DIRECTORIES)
   add_executable(test_lepton test_lepton.cpp)
-  target_link_libraries(test_lepton PRIVATE lepton lammps GTest::GMockMain)
+  target_link_libraries(test_lepton PRIVATE lammps GTest::GMockMain)
+  target_compile_definitions(test_lepton PRIVATE ${LEPTON_DEF})
+  target_include_directories(test_lepton PRIVATE ${LEPTON_INC})
   add_test(NAME Lepton COMMAND test_lepton)
 endif()