diff --git a/scripts/cnode-helper-scripts/cntools.library b/scripts/cnode-helper-scripts/cntools.library
index a0ed76d4b..b4f5c665b 100644
--- a/scripts/cnode-helper-scripts/cntools.library
+++ b/scripts/cnode-helper-scripts/cntools.library
@@ -2929,7 +2929,7 @@ submitTxKoiosOgmios() {
   jsonrpc=$(jq -n -c --arg cbor "${cborHex}" '{jsonrpc: "2.0", method: "submitTransaction", params: {transaction: {cbor: $cbor}}}')
   unset ogmios_error
   println ACTION "curl -sSL -X POST  -H \"accept: application/json\" -H \"Content-Type: application/json\" -d \"${jsonrpc}\" \"${KOIOS_API}/ogmios\""
-  stdout=$(curl -sSL -X POST  -H "accept: application/json" -H "Content-Type: application/json" -d "${jsonrpc}" "${KOIOS_API}/ogmios" 2>&1)
+  stdout=$(curl -sSL -X POST  -H "accept: application/json" -H "Content-Type: application/json" -d "${jsonrpc}" "${KOIOS_API}/ogmios/" 2>&1)
   if [[ -z ${stdout} ]] || ogmios_error=$(jq -er '.error //empty' <<< "${stdout}") || ! jq -er '.result //empty' <<< "${stdout}" &>/dev/null; then
     println ERROR "\n${FG_RED}ERROR${NC}: Transaction submit failed !!"
     if [[ -n ${ogmios_error} ]]; then