diff --git a/src/index.ts b/src/index.ts
index 4b28537..9a8c6cf 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -133,7 +133,8 @@ export async function handleRequest(request: Request) {
       let donatesEnabled = true;
       if (
         appVersion.flavor === 'google' &&
-        ((request.cf?.asOrganization || '').toLowerCase().includes('google') ||
+        ((typeof request.cf?.asOrganization === 'string' &&
+          request.cf?.asOrganization.toLowerCase().includes('google')) ||
           appVersion.code > lastApprovedAndReleasedGoogleAppVersionCode)
       ) {
         donatesEnabled = false;
@@ -141,8 +142,10 @@ export async function handleRequest(request: Request) {
         // Disable donates for older iOS versions without donates menu support.
         donatesEnabled = false;
       } else if (
-        (appVersion.flavor === 'ios' && (request.cf?.asOrganization || '').toLowerCase().includes('apple')) ||
-        appVersion.code > lastApprovedAndReleasediOSAppVersionCode
+        appVersion.flavor === 'ios' &&
+        ((typeof request.cf?.asOrganization === 'string' &&
+          request.cf?.asOrganization.toLowerCase().includes('apple')) ||
+          appVersion.code > lastApprovedAndReleasediOSAppVersionCode)
       ) {
         donatesEnabled = false;
       }