diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -857,7 +857,8 @@
      * Return list of available coins and locked coins grouped by non-change
      * output address.
      */
-    std::map<CTxDestination, std::vector<COutput>> ListCoins() const;
+    std::map<CTxDestination, std::vector<COutput>> ListCoins() const
+        EXCLUSIVE_LOCKS_REQUIRED(cs_main, cs_wallet);
 
     /**
      * Find non-change parent output.