diff --git a/cmake/Dependencies.cmake b/cmake/Dependencies.cmake
index 5eef7b90..54d38f09 100644
--- a/cmake/Dependencies.cmake
+++ b/cmake/Dependencies.cmake
@@ -30,7 +30,7 @@ find_package(PNG REQUIRED)
 find_package(ZLIB REQUIRED)
 
 if (USE_LIBSERIALPORT)
-    target_compile_definitions(${PROJECT_NAME} PRIVATE SERIAL_PORT)
+    target_compile_definitions(${PROJECT_NAME} PRIVATE USE_LIBSERIALPORT)
     find_helper(LIBSERIALPORT libserialport libserialport.h serialport)
     target_link_libraries(${PROJECT_NAME} PRIVATE ${LIBSERIALPORT_LIBRARIES})
 endif ()