diff --git a/pkgs/misc/jackaudio/default.nix b/pkgs/misc/jackaudio/default.nix
index 7e6d0da90317..7447421fc949 100644
--- a/pkgs/misc/jackaudio/default.nix
+++ b/pkgs/misc/jackaudio/default.nix
@@ -20,8 +20,7 @@ stdenv.mkDerivation rec {
 
   configurePhase = ''
     cd jack-1.9.8
-    python waf configure --prefix=$out --dbus --alsa \
-      ${if firewireSupport then "--firewire" else ""}
+    python waf configure --prefix=$out --dbus --alsa ${if firewireSupport then "--firewire" else ""}
   '';
 
   buildPhase = "python waf build";