diff --git a/pkgs/development/libraries/openldap/default.nix b/pkgs/development/libraries/openldap/default.nix
index a4274f064e5..d4e2e0aefd6 100644
--- a/pkgs/development/libraries/openldap/default.nix
+++ b/pkgs/development/libraries/openldap/default.nix
@@ -23,7 +23,8 @@ stdenv.mkDerivation rec {
     "STRIP="
     "prefix=$(out)"
     "moduledir=$(out)/lib/modules"
-  ] ++ stdenv.lib.optionals stdenv.isDarwin [ "CC=cc" ];
+    "CC=${stdenv.cc.targetPrefix}cc"
+  ];
 
   configureFlags = [
     "--enable-overlays"