1 files changed, 2 insertions, 4 deletions
diff --git a/pkgs/applications/networking/instant-messengers/swift-im/default.nix b/pkgs/applications/networking/instant-messengers/swift-im/default.nix
index db1d0a54dce..d1d69b3d837 100644
--- a/pkgs/applications/networking/instant-messengers/swift-im/default.nix
+++ b/pkgs/applications/networking/instant-messengers/swift-im/default.nix
@@ -31,10 +31,8 @@ stdenv.mkDerivation rec {
     "-fpermissive"
   ];
 
-  preInstall = ''
-    installTargets="$out"
-    installFlags+=" SWIFT_INSTALLDIR=$out"
-  '';
+  installTargets = [ (placeholder "out") ];
+  installFlags = [ "SWIFT_INSTALLDIR=${placeholder "out"}" ];
 
   meta = with stdenv.lib; {
     homepage = https://swift.im/;