diff --git a/src/wallet/spend.cpp b/src/wallet/spend.cpp
index c00a2cd0231..cacefffe35c 100644
--- a/src/wallet/spend.cpp
+++ b/src/wallet/spend.cpp
@@ -213,7 +213,10 @@ CoinsResult AvailableCoins(const CWallet& wallet,
 
             std::unique_ptr<SigningProvider> provider = wallet.GetSolvingProvider(output.scriptPubKey);
 
-            bool solvable = provider ? IsSolvable(*provider, output.scriptPubKey) : false;
+            int input_bytes = CalculateMaximumSignedInputSize(output, COutPoint(), provider.get(), coinControl);
+            // Because CalculateMaximumSignedInputSize just uses ProduceSignature and makes a dummy signature,
+            // it is safe to assume that this input is solvable if input_bytes is greater -1.
+            bool solvable = input_bytes > -1;
             bool spendable = ((mine & ISMINE_SPENDABLE) != ISMINE_NO) || (((mine & ISMINE_WATCH_ONLY) != ISMINE_NO) && (coinControl && coinControl->fAllowWatchOnly && solvable));
 
             // Filter by spendable outputs only
@@ -243,7 +246,6 @@ CoinsResult AvailableCoins(const CWallet& wallet,
                 type = Solver(output.scriptPubKey, return_values_unused);
             }
 
-            int input_bytes = CalculateMaximumSignedInputSize(output, COutPoint(), provider.get(), coinControl);
             COutput coin(outpoint, output, nDepth, input_bytes, spendable, solvable, safeTx, wtx.GetTxTime(), tx_from_me, feerate);
             switch (type) {
             case TxoutType::WITNESS_UNKNOWN: