diff --git a/src/libxrpl/protocol/STTx.cpp b/src/libxrpl/protocol/STTx.cpp
index 95df389363..1637db5d3e 100644
--- a/src/libxrpl/protocol/STTx.cpp
+++ b/src/libxrpl/protocol/STTx.cpp
@@ -570,6 +570,10 @@ STTx::buildBatchTxnIds()
         return;
 
     auto const& raw = getFieldArray(sfRawTransactions);
+
+    if (raw.size() > maxBatchTxCount)
+        return;
+
     batchTxnIds_.reserve(raw.size());
     for (STObject const& rb : raw)
         batchTxnIds_.push_back(rb.getHash(HashPrefix::transactionID));