diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index d10e59a0972..3781e7bc663 100644
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -105,8 +105,8 @@ if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
   if( LLVM_BUILD_32_BITS )
     message(STATUS "Building 32 bits executables and libraries.")
     add_llvm_definitions( -m32 )
-    list(APPEND CMAKE_EXE_LINKER_FLAGS -m32)
-    list(APPEND CMAKE_SHARED_LINKER_FLAGS -m32)
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
   endif( LLVM_BUILD_32_BITS )
 endif( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )