diff --git a/pkgs/servers/sql/postgresql/default.nix b/pkgs/servers/sql/postgresql/default.nix
index a81e2fb2c8f..fafb5bfeb92 100644
--- a/pkgs/servers/sql/postgresql/default.nix
+++ b/pkgs/servers/sql/postgresql/default.nix
@@ -31,9 +31,9 @@ let
       "--sysconfdir=/etc"
       "--libdir=$(lib)/lib"
       "--with-system-tzdata=${tzdata}"
-    ]
-      ++ lib.optional stdenv.isDarwin  "--with-uuid=e2fs"
-      ++ lib.optional (!stdenv.isDarwin) "--with-ossp-uuid";
+    ] ++ (
+      if stdenv.isDarwin then [ "--with-uuid=e2fs" ] else [ "--with-ossp-uuid" ]
+    );
 
     patches =
       [ (if atLeast "9.4" then ./disable-resolve_symlinks-94.patch else ./disable-resolve_symlinks.patch)