From 931df9dd83e7feea11197402c5b4e7ad489f4abf Mon Sep 17 00:00:00 2001
From: equitably <71963108+equitably@users.noreply.github.com>
Date: Wed, 23 Aug 2023 19:28:58 -0400
Subject: [PATCH] Update output_file.cpp

---
 output_file.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/output_file.cpp b/output_file.cpp
index b5809ad..7f1f173 100644
--- a/output_file.cpp
+++ b/output_file.cpp
@@ -657,7 +657,7 @@ int write_fd_chunk(struct output_file* out, unsigned int len, int fd, int64_t of
   uint64_t buffer_size;
   char* ptr;
 
-  aligned_offset = offset & ~(4096 - 1);
+  aligned_offset = offset & ~(sysconf(_SC_PAGESIZE) - 1);
   aligned_diff = offset - aligned_offset;
   buffer_size = (uint64_t)len + (uint64_t)aligned_diff;