diff --git a/reactos/cmake/compilerflags.cmake b/reactos/cmake/compilerflags.cmake
index 953bd3fac76..5d3ece6d12f 100644
--- a/reactos/cmake/compilerflags.cmake
+++ b/reactos/cmake/compilerflags.cmake
@@ -96,14 +96,3 @@ macro(set_unicode)
    add_definitions(-DUNICODE -D_UNICODE)
    set(IS_UNICODE 1)
 endmacro()
-
-function(add_compiler_flags_target __module)
-    get_target_property(__flags ${__module} COMPILE_FLAGS)
-    if(NOT __flags)
-        set(__flags "")
-    endif()
-    foreach(flag ${ARGN})
-        set(__flags "${__flags} ${flag}")
-    endforeach()
-    set_target_properties(${__module} PROPERTIES COMPILE_FLAGS ${__flags})
-endfunction()