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-rw-r--r--nixos/modules/services/mail/postgrey.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixos/modules/services/mail/postgrey.nix b/nixos/modules/services/mail/postgrey.nix
index 709f6b21aa0..7c206e3725e 100644
--- a/nixos/modules/services/mail/postgrey.nix
+++ b/nixos/modules/services/mail/postgrey.nix
@@ -163,7 +163,7 @@ in {
 
     systemd.services.postgrey = let
       bind-flag = if cfg.socket ? path then
-        ''--unix=${cfg.socket.path} --socketmode=${cfg.socket.mode}''
+        "--unix=${cfg.socket.path} --socketmode=${cfg.socket.mode}"
       else
         ''--inet=${optionalString (cfg.socket.addr != null) (cfg.socket.addr + ":")}${toString cfg.socket.port}'';
     in {