diff --git a/src/wallet/feebumper.cpp b/src/wallet/feebumper.cpp
index ff7a9f5a3ac..7f84c6fa668 100644
--- a/src/wallet/feebumper.cpp
+++ b/src/wallet/feebumper.cpp
@@ -80,9 +80,10 @@ static feebumper::Result CheckFeeRate(const CWallet& wallet, const CMutableTrans
         reused_inputs.push_back(txin.prevout);
     }
 
-    std::optional<CAmount> combined_bump_fee = wallet.chain().calculateCombinedBumpFee(reused_inputs, newFeerate);
+    const std::optional<CAmount> combined_bump_fee = wallet.chain().calculateCombinedBumpFee(reused_inputs, newFeerate);
     if (!combined_bump_fee.has_value()) {
         errors.push_back(Untranslated(strprintf("Failed to calculate bump fees, because unconfirmed UTXOs depend on an enormous cluster of unconfirmed transactions.")));
+        return feebumper::Result::WALLET_ERROR;
     }
     CAmount new_total_fee = newFeerate.GetFee(maxTxSize) + combined_bump_fee.value();