diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9ff71d070..f6d00daa08 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,7 +19,9 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased](https://github.com/o1-labs/o1js/compare/26363465d...HEAD)
 
-> No unreleased changes yet
+### Fixed
+
+- Add a parameter to `checkZkappTransaction` for block length to check for transaction inclusion. This fixes a case where `Transaction.wait()` only checked the latest block, which led to an error once the transaction was included in a block that was not the latest. https://github.com/o1-labs/o1js/pull/1239
 
 ## [0.14.1](https://github.com/o1-labs/o1js/compare/e8e7510e1...26363465d)
 
diff --git a/src/lib/fetch.ts b/src/lib/fetch.ts
index 8723d5ba1e..768410c1b5 100644
--- a/src/lib/fetch.ts
+++ b/src/lib/fetch.ts
@@ -481,8 +481,8 @@ type LastBlockQueryFailureCheckResponse = {
   }[];
 };
 
-const lastBlockQueryFailureCheck = `{
-  bestChain(maxLength: 1) {
+const lastBlockQueryFailureCheck = (length: number) => `{
+  bestChain(maxLength: ${length}) {
     transactions {
       zkappCommands {
         hash
@@ -496,10 +496,11 @@ const lastBlockQueryFailureCheck = `{
 }`;
 
 async function fetchLatestBlockZkappStatus(
+  blockLength: number,
   graphqlEndpoint = networkConfig.minaEndpoint
 ) {
   let [resp, error] = await makeGraphqlRequest(
-    lastBlockQueryFailureCheck,
+    lastBlockQueryFailureCheck(blockLength),
     graphqlEndpoint,
     networkConfig.minaFallbackEndpoints
   );
@@ -513,9 +514,8 @@ async function fetchLatestBlockZkappStatus(
   return bestChain;
 }
 
-async function checkZkappTransaction(txnId: string) {
-  let bestChainBlocks = await fetchLatestBlockZkappStatus();
-
+async function checkZkappTransaction(txnId: string, blockLength = 20) {
+  let bestChainBlocks = await fetchLatestBlockZkappStatus(blockLength);
   for (let block of bestChainBlocks.bestChain) {
     for (let zkappCommand of block.transactions.zkappCommands) {
       if (zkappCommand.hash === txnId) {