diff --git a/cpp/src/arrow/ipc/reader.cc b/cpp/src/arrow/ipc/reader.cc
index e4c9352e44ccf..a9f2f9769c958 100644
--- a/cpp/src/arrow/ipc/reader.cc
+++ b/cpp/src/arrow/ipc/reader.cc
@@ -640,7 +640,7 @@ Result<std::shared_ptr<RecordBatch>> LoadRecordBatchSubset(
   auto batch = RecordBatch::Make(std::move(filtered_schema), metadata->length(),
     std::move(filtered_columns));
   if (context.options.ensure_memory_alignment) {
-    return util::EnsureAlignment(batch, arrow::util::kValueAlignment, default_memory_pool());
+    return util::EnsureAlignment(batch, arrow::util::kValueAlignment, context.options.memory_pool);
   }
   return batch;
 }