diff --git a/contracts/token/BiconomyTokenPaymaster.sol b/contracts/token/BiconomyTokenPaymaster.sol
index 62f5efe..9a780a1 100644
--- a/contracts/token/BiconomyTokenPaymaster.sol
+++ b/contracts/token/BiconomyTokenPaymaster.sol
@@ -605,7 +605,7 @@ contract BiconomyTokenPaymaster is
                 feeReceiver,
                 charge
             );
-            (bool success, bytes memory returndata) = address(feeToken).call(
+            (bool success,) = address(feeToken).call(
                 _data
             );
             if (!success) {