diff --git a/modules/launchd/launchd.nix b/modules/launchd/launchd.nix
index 9eabf0a..8499e25 100644
--- a/modules/launchd/launchd.nix
+++ b/modules/launchd/launchd.nix
@@ -120,6 +120,8 @@ in
         This key maps to the second argument of `execvp(3)`.  This key is required in the absence of the Program
         key. Please note: many people are confused by this key. Please read `execvp(3)` very carefully!
       '';
+      # TODO: Remove this some time after 25.11.
+      apply = map (value: lib.warnIf (lib.hasInfix "&" value) "A value for `ProgramArguments` contains the literal string `&`. This is no longer necessary and will lead to double-escaping, as nix-darwin now automatically escapes special characters." value);
     };
 
     EnableGlobbing = mkOption {