diff --git a/pkgs/tools/system/fio/default.nix b/pkgs/tools/system/fio/default.nix
index aadad3b96c8..b4ddca4371e 100644
--- a/pkgs/tools/system/fio/default.nix
+++ b/pkgs/tools/system/fio/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://git.kernel.dk/?p=fio.git;a=summary;
+    homepage = "http://git.kernel.dk/?p=fio.git;a=summary";
     description = "Flexible IO Tester - an IO benchmark tool";
     license = "GPLv2";
   };