diff --git a/pkgs/development/compilers/gcc-4.5/default.nix b/pkgs/development/compilers/gcc-4.5/default.nix
index 9eadb68f63ee..91fbc666008e 100644
--- a/pkgs/development/compilers/gcc-4.5/default.nix
+++ b/pkgs/development/compilers/gcc-4.5/default.nix
@@ -235,7 +235,8 @@ stdenv.mkDerivation ({
         )
       )
     }
-    ${"--with-arch=loongson2f"}
+    ${ # Trick that should be taken out once we have a mips64-linux not loongson2f
+      if cross == null && stdenv.system == "mips64-linux" then "--with-arch=loongson2f" else ""}
     ${if langAda then " --enable-libada" else ""}
     ${if (cross == null && stdenv.isi686) then "--with-arch=i686" else ""}
     ${if cross != null then crossConfigureFlags else ""}