diff --git a/functions/api/inactivity/[id].ts b/functions/api/inactivity/[id].ts
index 4283ab0..138dfa5 100644
--- a/functions/api/inactivity/[id].ts
+++ b/functions/api/inactivity/[id].ts
@@ -91,8 +91,10 @@ export async function onRequestPost(context: RequestContext) {
     requestedNotice.decisions,
   );
 
-  for (const department of userAdminDepartments)
+  for (const department of userAdminDepartments) {
+    if (!JSON.parse(requestedNotice.departments).includes(department)) continue;
     decisions[department] = accepted;
+  }
 
   const applicableDepartments = JSON.parse(requestedNotice.departments).length;