diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e101619e25d58a7b6d778cad4bbdf5bc4bc8b981..889344328a63470a12a91de7ff40d06e9ff16ac4 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -62,5 +62,13 @@ if ("${BUILD_LIB}" STREQUAL "yes")
         add_library(boost_unit_test SHARED boost_test_lib_dummy.cpp)
         add_library(exprtk SHARED exprtk.cpp)
 	endif()
+
+    target_include_directories(
+        libboost_unit_test
+
+        PRIVATE
+            ${Boost_INCLUDE_DIRS}
+    )
+
 endif ()