diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 5fecac9..90960bc 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -6,7 +6,7 @@ target_compile_features(logc PRIVATE c_std_11)
 if (NOT WIN32)
     target_compile_definitions(logc PRIVATE -DLOG_USE_COLOR)
 endif()
-target_compile_options(logc INTERFACE -fmacro-prefix-map=${CMAKE_SOURCE_DIR}=. PRIVATE ${DP_WARN_FLAGS})
+target_compile_options(logc INTERFACE -fmacro-prefix-map=${CMAKE_CURRENT_SOURCE_DIR}=. PRIVATE ${DP_WARN_FLAGS})
 
 find_package(Threads)