diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index ecd4012b7e05d..71ac54cb1b8e6 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -353,12 +353,12 @@ class DummySignatureCreator final : public BaseSignatureCreator {
 
 const BaseSignatureCreator& DUMMY_SIGNATURE_CREATOR = DummySignatureCreator();
 
-bool IsSolvable(const CKeyStore& store, const CScript& script)
+bool IsSolvable(const SigningProvider& provider, const CScript& script)
 {
     // This check is to make sure that the script we created can actually be solved for and signed by us
     // if we were to have the private keys. This is just to make sure that the script is valid and that,
     // if found in a transaction, we would still accept and relay that transaction.
-    DummySignatureCreator creator(&store);
+    DummySignatureCreator creator(&provider);
     SignatureData sigs;
     if (ProduceSignature(creator, script, sigs)) {
         // VerifyScript check is just defensive, and should never fail.
diff --git a/src/script/sign.h b/src/script/sign.h
index 7178c1f9f097e..f8b5e98d2c7bf 100644
--- a/src/script/sign.h
+++ b/src/script/sign.h
@@ -84,8 +84,8 @@ void UpdateInput(CTxIn& input, const SignatureData& data);
 
 /* Check whether we know how to sign for an output like this, assuming we
  * have all private keys. While this function does not need private keys, the passed
- * keystore is used to look up public keys and redeemscripts by hash.
+ * provider is used to look up public keys and redeemscripts by hash.
  * Solvability is unrelated to whether we consider this output to be ours. */
-bool IsSolvable(const CKeyStore& store, const CScript& script);
+bool IsSolvable(const SigningProvider& provider, const CScript& script);
 
 #endif // BITCOIN_SCRIPT_SIGN_H