Index: lib/sanitizer_common/sanitizer_internal_defs.h
===================================================================
--- lib/sanitizer_common/sanitizer_internal_defs.h
+++ lib/sanitizer_common/sanitizer_internal_defs.h
@@ -133,7 +133,7 @@
 // _FILE_OFFSET_BITS. This definition of OFF_T matches the ABI of system calls
 // like pread and mmap, as opposed to pread64 and mmap64.
 // FreeBSD, Mac and Linux/x86-64 are special.
-#if SANITIZER_FREEBSD || SANITIZER_MAC || \
+#if SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_MAC || \
   (SANITIZER_LINUX && defined(__x86_64__))
 typedef u64 OFF_T;
 #else