diff --git a/src/ripple/protocol/jss.h b/src/ripple/protocol/jss.h
index 74571fb96..05152ac6a 100644
--- a/src/ripple/protocol/jss.h
+++ b/src/ripple/protocol/jss.h
@@ -281,6 +281,7 @@ JSS(have_transactions);     // out: InboundLedger
 JSS(highest_sequence);      // out: AccountInfo
 JSS(highest_ticket);        // out: AccountInfo
 JSS(historical_perminute);  // historical_perminute.
+JSS(hook_hash);             // in: LedgerEntry
 JSS(hostid);                // out: NetworkOPs
 JSS(hotwallet);             // in: GatewayBalances
 JSS(id);                    // websocket.
diff --git a/src/ripple/rpc/handlers/LedgerEntry.cpp b/src/ripple/rpc/handlers/LedgerEntry.cpp
index 12696abb3..9c075e6b9 100644
--- a/src/ripple/rpc/handlers/LedgerEntry.cpp
+++ b/src/ripple/rpc/handlers/LedgerEntry.cpp
@@ -328,6 +328,20 @@ doLedgerEntry(RPC::JsonContext& context)
                     *id, context.params[jss::ticket][jss::ticket_seq].asUInt());
         }
     }
+    else if (context.params.isMember(jss::hook_hash))
+    {
+        expectedType = ltHOOK_DEFINITION;
+        if (context.params[jss::hook_hash].isObject() ||
+            (!uNodeIndex.parseHex(context.params[jss::hook_hash].asString())))
+        {
+            uNodeIndex = beast::zero;
+            jvResult[jss::error] = "malformedRequest";
+        }
+        else
+        {
+            uNodeIndex = keylet::hookDefinition(uNodeIndex).key;
+        }
+    }
     else
     {
         jvResult[jss::error] = "unknownOption";