diff --git a/fs_mgr/libsnapshot/snapuserd/Android.bp b/fs_mgr/libsnapshot/snapuserd/Android.bp
index 9261482..dca9f49 100644
--- a/fs_mgr/libsnapshot/snapuserd/Android.bp
+++ b/fs_mgr/libsnapshot/snapuserd/Android.bp
@@ -96,6 +96,10 @@
         "user-space-merge/snapuserd_server.cpp",
     ],
 
+    cflags: [
+        "-D_FILE_OFFSET_BITS=64",
+    ],
+
     static_libs: [
         "libbase",
         "libbrotli",