diff --git a/src/rpcdump.cpp b/src/rpcdump.cpp
index 2cf6a192c..f33c00369 100644
--- a/src/rpcdump.cpp
+++ b/src/rpcdump.cpp
@@ -54,11 +54,13 @@ Value importprivkey(const Array& params, bool fHelp)
     CBitcoinSecret vchSecret;
     bool fGood = vchSecret.SetString(strSecret);
 
-    if (!fGood) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid private key");
+    if (!fGood) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid private key encoding");
 
     CKey key = vchSecret.GetKey();
     CPubKey pubkey = key.GetPubKey();
     CKeyID vchAddress = pubkey.GetID();
+    if (!key.IsValid()) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Private key outside allowed range");
+
     {
         LOCK2(cs_main, pwalletMain->cs_wallet);