diff --git a/src/routes/safe/store/actions/createTransaction.js b/src/routes/safe/store/actions/createTransaction.js
index 9471bcd0..662b060d 100644
--- a/src/routes/safe/store/actions/createTransaction.js
+++ b/src/routes/safe/store/actions/createTransaction.js
@@ -28,7 +28,7 @@ const createTransaction = (
   const web3 = getWeb3()
   const from = userAccountSelector(state)
   const threshold = await safeInstance.getThreshold()
-  const nonce = await safeInstance.nonce()
+  const nonce = (await safeInstance.nonce()).toString()
   const txRecipient = isSendingETH ? to : token.address
   const valueInWei = web3.utils.toWei(valueInEth, 'ether')
   let txAmount = valueInWei