diff --git a/libfuse/lib/fuse_lowlevel.c b/libfuse/lib/fuse_lowlevel.c
index afad2f21..c64849bc 100644
--- a/libfuse/lib/fuse_lowlevel.c
+++ b/libfuse/lib/fuse_lowlevel.c
@@ -286,7 +286,7 @@ fill_open(struct fuse_open_out   *arg_,
   fprintf(stderr,
           "%d %d\n",
           !!(arg_->open_flags | FOPEN_KEEP_CACHE),
-          !!(arg_->passthrough | FOPEN_PASSTHROUGH));
+          !!(arg_->open_flags | FOPEN_PASSTHROUGH));
 }
 
 int