diff --git a/packages/payment-providers/src/providers/telebirr/telebirr.crypto.ts b/packages/payment-providers/src/providers/telebirr/telebirr.crypto.ts
index 12ea9624a..d8c2e6763 100644
--- a/packages/payment-providers/src/providers/telebirr/telebirr.crypto.ts
+++ b/packages/payment-providers/src/providers/telebirr/telebirr.crypto.ts
@@ -17,6 +17,7 @@ export function buildCanonicalString(requestObject: Record<string, unknown>): st
 
   for (const key of Object.keys(requestObject)) {
     if (EXCLUDE_FIELDS.has(key)) continue;
+    if (requestObject[key] === undefined) continue;
     fieldMap[key] = requestObject[key];
   }
 
@@ -24,7 +25,9 @@ export function buildCanonicalString(requestObject: Record<string, unknown>): st
   if (biz && typeof biz === 'object') {
     for (const key of Object.keys(biz as Record<string, unknown>)) {
       if (EXCLUDE_FIELDS.has(key)) continue;
-      fieldMap[key] = (biz as Record<string, unknown>)[key];
+      const value = (biz as Record<string, unknown>)[key];
+      if (value === undefined) continue;
+      fieldMap[key] = value;
     }
   }
 
diff --git a/packages/payment-providers/src/providers/telebirr/telebirr.provider.ts b/packages/payment-providers/src/providers/telebirr/telebirr.provider.ts
index 39a0e8e90..ecb75c3e8 100644
--- a/packages/payment-providers/src/providers/telebirr/telebirr.provider.ts
+++ b/packages/payment-providers/src/providers/telebirr/telebirr.provider.ts
@@ -211,7 +211,7 @@ export class TelebirrProvider implements PaymentProvider {
         total_amount: totalAmount,
         trans_currency: input.currency,
         timeout_express: this.timeoutExpress,
-        redirect_url: input.redirectUrl,
+        ...(input.redirectUrl ? { redirect_url: input.redirectUrl } : {}),
       },
     };
     const sign = signRequestObject(