diff --git a/billing/filters.py b/billing/filters.py
index 8a4c274..9aefe8b 100644
--- a/billing/filters.py
+++ b/billing/filters.py
@@ -107,4 +107,4 @@ class WalletTransactionFilter(django_filters.FilterSet):
 
     class Meta:
         model = WalletTransaction
-        fields = ["user", "amount", "created_at"]
+        fields = ["user", "amount", "created_at", "transaction_type"]