diff --git a/pkgs/development/libraries/log4shib/default.nix b/pkgs/development/libraries/log4shib/default.nix
index 1c9a6a1e2ac7..e204fa92bfd1 100644
--- a/pkgs/development/libraries/log4shib/default.nix
+++ b/pkgs/development/libraries/log4shib/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
 
   nativeBuildInputs = [ autoreconfHook ];
 
-  NIX_CFLAGS_COMPILE = [ "-std=c++11" ];
+  CXXFLAGS = "-std=c++11";
 
   meta = with lib; {
     description = "A forked version of log4cpp that has been created for the Shibboleth project";