diff --git a/cmake/use-gold-linker.cmake b/cmake/use-gold-linker.cmake
index 902e922..18c5d88 100644
--- a/cmake/use-gold-linker.cmake
+++ b/cmake/use-gold-linker.cmake
@@ -4,7 +4,7 @@ if(USE_LD_GOLD AND "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
   execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version OUTPUT_VARIABLE stdout ERROR_QUIET)
   if("${stdout}" MATCHES "GNU gold")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fuse-ld=gold")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fuse-ld=gold")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-ld=gold")
   else()
     message(WARNING "GNU gold linker isn't available, using the default system linker.")
   endif()