diff --git a/src/keystore.h b/src/keystore.h
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -26,13 +26,11 @@
 
     //! Check whether a key corresponding to a given address is present in the
     //! store.
-    virtual bool HaveKey(const CKeyID &address) const = 0;
     virtual std::set<CKeyID> GetKeys() const = 0;
 
     //! Support for BIP 0013 : see
     //! https://github.com/bitcoin/bips/blob/master/bip-0013.mediawiki
     virtual bool AddCScript(const CScript &redeemScript) = 0;
-    virtual bool HaveCScript(const CScriptID &hash) const = 0;
     virtual std::set<CScriptID> GetCScripts() const = 0;
 
     //! Support for Watch-only addresses
diff --git a/src/script/sign.h b/src/script/sign.h
--- a/src/script/sign.h
+++ b/src/script/sign.h
@@ -52,12 +52,14 @@
     virtual bool GetCScript(const CScriptID &scriptid, CScript &script) const {
         return false;
     }
+    virtual bool HaveCScript(const CScriptID &scriptid) const { return false; }
     virtual bool GetPubKey(const CKeyID &address, CPubKey &pubkey) const {
         return false;
     }
     virtual bool GetKey(const CKeyID &address, CKey &key) const {
         return false;
     }
+    virtual bool HaveKey(const CKeyID &address) const { return false; }
     virtual bool GetKeyOrigin(const CKeyID &keyid, KeyOriginInfo &info) const {
         return false;
     }