diff --git a/pkgs/development/tools/misc/ccache/default.nix b/pkgs/development/tools/misc/ccache/default.nix
index f41969ebb43..fad2d87cc17 100644
--- a/pkgs/development/tools/misc/ccache/default.nix
+++ b/pkgs/development/tools/misc/ccache/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
   passthru = {
     # A derivation that provides gcc and g++ commands, but that
     # will end up calling ccache for the given cacheDir
-    links = extraConfig : (runCommand "ccache-links" { passthru.gcc = gcc; }
+    links = extraConfig : (runCommand "ccache-links" { passthru.gcc = gcc; passthru.isGNU = true; }
       ''
         mkdir -p $out/bin
         if [ -x "${gcc.cc}/bin/gcc" ]; then