diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 3a5498f19..8e6d8b128 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -3716,11 +3716,15 @@ UniValue z_anonsetblockdelta(const UniValue& params, bool fHelp, const CPubKey&
         std::string strHeight2 = params[1].get_str();
         int nHeight2 = -1;
         try {
-            nHeight = std::stoi(strHeight2);
+            nHeight2 = std::stoi(strHeight2);
         } catch (const std::exception &e) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid ending block height parameter");
         }
 
+        if (nHeight2 <= nHeight) {
+            throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height must be larger than starting height");
+        }
+
         if (nHeight2 < 0 || nHeight2 > chainActive.Height()) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height out of range");
         }