diff --git a/src/ripple/app/paths/RippleLineCache.cpp b/src/ripple/app/paths/RippleLineCache.cpp
index b17fade39..eed4fd3c5 100644
--- a/src/ripple/app/paths/RippleLineCache.cpp
+++ b/src/ripple/app/paths/RippleLineCache.cpp
@@ -30,7 +30,7 @@ RippleLineCache::RippleLineCache (Ledger::ref l)
 RippleLineCache::RippleStateVector const&
 RippleLineCache::getRippleLines (Account const& accountID)
 {
-    AccountKey key (accountID);
+    AccountKey key (accountID, hasher_ (accountID));
 
     ScopedLockType sl (mLock);
 
diff --git a/src/ripple/app/paths/RippleLineCache.h b/src/ripple/app/paths/RippleLineCache.h
index 1fabba04f..8f9557364 100644
--- a/src/ripple/app/paths/RippleLineCache.h
+++ b/src/ripple/app/paths/RippleLineCache.h
@@ -51,6 +51,7 @@ private:
     typedef std::lock_guard <LockType> ScopedLockType;
     LockType mLock;
 
+    ripple::hardened_hash<> hasher_;
     Ledger::pointer mLedger;
 
     struct AccountKey
@@ -58,31 +59,19 @@ private:
         Account account_;
         std::size_t hash_value_;
 
-        AccountKey (Account const& account)
+        AccountKey (Account const& account, std::size_t hash)
             : account_ (account)
-            , hash_value_ (hardened_hash<>{}(account))
-        {
+            , hash_value_ (hash)
+        { }
 
-        }
+        AccountKey (AccountKey const& other) = default;
 
-        AccountKey (AccountKey const& other)
-            : account_ (other.account_)
-            , hash_value_ (other.hash_value_)
-        {
-
-        }
-
-        AccountKey& operator=(AccountKey const& other)
-        {
-            account_ = other.account_;
-            hash_value_ = other.hash_value_;
-            return *this;
-        }
+        AccountKey&
+        operator=(AccountKey const& other) = default;
 
         bool operator== (AccountKey const& lhs) const
         {
-            return hash_value_ == lhs.hash_value_ &&
-                account_ == lhs.account_;
+            return hash_value_ == lhs.hash_value_ && account_ == lhs.account_;
         }
 
         std::size_t