diff --git a/frontend/src/stores/contacts.js b/frontend/src/stores/contacts.js
index 9e35be3b..8a0071ab 100644
--- a/frontend/src/stores/contacts.js
+++ b/frontend/src/stores/contacts.js
@@ -38,7 +38,7 @@ export const contactsStore = defineStore('crm-contacts', () => {
       for (let lead_contact of lead_contacts) {
         // remove special characters from phone number to make it easier to search
         // also remove spaces but keep + sign at the start
-        lead_contact.mobile_no = lead_contact.mobile_no.replace(/[^0-9+]/g, '')
+        lead_contact.mobile_no = lead_contact.mobile_no?.replace(/[^0-9+]/g, '')
         lead_contact.full_name = lead_contact.lead_name
         leadContactsByPhone[lead_contact.mobile_no] = lead_contact
       }
@@ -59,7 +59,7 @@ export const contactsStore = defineStore('crm-contacts', () => {
     return contactsByName[name]
   }
   function getLeadContact(mobile_no) {
-    mobile_no = mobile_no.replace(/[^0-9+]/g, '')
+    mobile_no = mobile_no?.replace(/[^0-9+]/g, '')
     return leadContactsByPhone[mobile_no]
   }