diff --git a/pkgs/servers/sql/postgresql/default.nix b/pkgs/servers/sql/postgresql/default.nix
index c91a9bb8b9a..16eeac03811 100644
--- a/pkgs/servers/sql/postgresql/default.nix
+++ b/pkgs/servers/sql/postgresql/default.nix
@@ -16,7 +16,8 @@ let
     setOutputFlags = false; # $out retains configureFlags :-/
 
     buildInputs =
-      [ zlib readline openssl libxml2 makeWrapper systemd ]
+      [ zlib readline openssl libxml2 makeWrapper ]
+      ++ lib.optionals (atLeast "9.6" && !stdenv.isDarwin) [ systemd ]
       ++ lib.optionals (!stdenv.isDarwin) [ libossp_uuid ];
 
     enableParallelBuilding = true;