diff --git a/appdx-bitcore.asciidoc b/appdx-bitcore.asciidoc
index d2f22015..2318c3a0 100644
--- a/appdx-bitcore.asciidoc
+++ b/appdx-bitcore.asciidoc
@@ -58,7 +58,7 @@ Creating and signing a transaction from an UTXO:
 ----
 > utxo = {
   txId: transaction id containing an unspent output,
-  outputIndex: output indexi e.g. 0,
+  outputIndex: output index e.g. 0,
   address: addressOfUtxo,
   script: bitcore.Script.buildPublicKeyHashOut(addressOfUtxo).toString(),
   satoshis: amount sent to the address