diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4bb21497..173c073c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Version 77:
+
+* file_posix works without large file support
+
+--------------------------------------------------------------------------------
+
 Version 76:
 
 * Always go through write_some
diff --git a/include/beast/core/impl/file_posix.ipp b/include/beast/core/impl/file_posix.ipp
index 072ee9af..6a637849 100644
--- a/include/beast/core/impl/file_posix.ipp
+++ b/include/beast/core/impl/file_posix.ipp
@@ -208,8 +208,6 @@ size(error_code& ec) const
         ec.assign(errc::invalid_argument, generic_category());
         return 0;
     }
-    BOOST_STATIC_ASSERT(
-        sizeof(stat::st_size) == sizeof(std::uint64_t));
     struct stat st;
     if(::fstat(fd_, &st) != 0)
     {