diff --git a/pkgs/applications/misc/redshift/default.nix b/pkgs/applications/misc/redshift/default.nix
index a8730bc6a014..71be8f8b157d 100644
--- a/pkgs/applications/misc/redshift/default.nix
+++ b/pkgs/applications/misc/redshift/default.nix
@@ -43,7 +43,7 @@ let
         "--enable-quartz=${if withQuartz then "yes" else "no"}"
         "--enable-corelocation=${if withCoreLocation then "yes" else "no"}"
       ] ++ lib.optionals (pname == "gammastep") [
-        "--with-systemduserunitdir=${placeholder "out"}/share/systemd/user/"
+        "--with-systemduserunitdir=${placeholder "out"}/lib/systemd/user/"
         "--enable-apparmor"
       ];
 
@@ -117,6 +117,7 @@ rec {
       license = licenses.gpl3Plus;
       homepage = "http://jonls.dk/redshift";
       platforms = platforms.unix;
+      mainProgram = "redshift";
       maintainers = with maintainers; [ yana ];
     };
   };
@@ -137,7 +138,8 @@ rec {
       longDescription = "Gammastep"
         + lib.removePrefix "Redshift" redshift.meta.longDescription;
       homepage = "https://gitlab.com/chinstrap/gammastep";
-      maintainers = [ lib.maintainers.primeos ] ++ redshift.meta.maintainers;
+      mainProgram = "gammastep";
+      maintainers = (with lib.maintainers; [ eclairevoyant primeos ]) ++ redshift.meta.maintainers;
     };
   };
 }