diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index b965b8138..90838c4a9 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -615,8 +615,8 @@ UniValue MoMoMdata(const UniValue& params, bool fHelp)
             for (i=0; i<mdata.numpairs; i++)
             {
                 UniValue item(UniValue::VOBJ);
-                item.push_back(Pair("height",mdata.pairs[i].notarized_height));
-                item.push_back(Pair("MoMoMoffset",mdata.pairs[i].MoMoMoffset);
+                item.push_back(Pair("height",(int)mdata.pairs[i].notarized_height));
+                item.push_back(Pair("MoMoMoffset",(int)mdata.pairs[i].MoMoMoffset);
                 a.push_back(item);
             }
             free(mdata.pairs);