diff --git a/src/permit/permit.service.ts b/src/permit/permit.service.ts
index 07827ba..facfa11 100644
--- a/src/permit/permit.service.ts
+++ b/src/permit/permit.service.ts
@@ -209,7 +209,7 @@ export async function updatePermit(
           user
         );
 
-        if (key == "assignedTo") {
+        if (key == "assignedTo" && input[key] != null) {
           await createAlert(
             user.tenantId,
             `You are assigned to ${updatePermitResult.permitNumber}`,