diff --git a/nixos/modules/services/mail/rspamd.nix b/nixos/modules/services/mail/rspamd.nix
index 89aa9d17ff7f..4db35d9e89ab 100644
--- a/nixos/modules/services/mail/rspamd.nix
+++ b/nixos/modules/services/mail/rspamd.nix
@@ -68,7 +68,7 @@ let
           replaced with <literal>rspamd_proxy</literal>.
         '';
         apply = let
-            from = "services.rspamd.workers.\”${name}\".type";
+            from = "services.rspamd.workers.\"${name}\".type";
             files = options.type.files;
             warning = "The option `${from}` defined in ${showFiles files} has enum value `proxy` which has been renamed to `rspamd_proxy`";
           in x: if x == "proxy" then traceWarning warning "rspamd_proxy" else x;