diff --git a/modules/base/unitstatus/default.nix b/modules/base/unitstatus/default.nix
index 76e1e4a..2fdb42f 100644
--- a/modules/base/unitstatus/default.nix
+++ b/modules/base/unitstatus/default.nix
@@ -41,7 +41,7 @@
           description = "Send an email on unit failure";
           serviceConfig = {
             Type = "simple";
-            ExecStart = ''${script} "%I" "Hostname: %H" "Machine ID: %m" "Boot ID: %b" '';
+            ExecStart = ''${script} "%i" "Hostname: %H" "Machine ID: %m" "Boot ID: %b" '';
           };
         };
       }