diff --git a/fuse-native.c b/fuse-native.c
index 64bc00f..d564060 100644
--- a/fuse-native.c
+++ b/fuse-native.c
@@ -380,7 +380,7 @@ FUSE_METHOD(read, 6, 2, (const char *path, char *buf, size_t len, off_t offset,
   napi_create_uint32(env, l->len, &(argv[5]));
   FUSE_UINT64_TO_INTS_ARGV(l->offset, 6)
 }, {
-  napi_detach_arraybuffer(env, argv[3]);
+  assert(napi_detach_arraybuffer(env, argv[3]) == napi_ok);
 })
 
 FUSE_METHOD(write, 6, 1, (const char *path, const char *buf, size_t len, off_t offset, struct fuse_file_info *info), {
diff --git a/index.js b/index.js
index 8e162ca..74923bd 100644
--- a/index.js
+++ b/index.js
@@ -458,7 +458,7 @@ class Fuse extends Nanoresource {
 
   _op_read (signal, path, fd, buf, len, offsetLow, offsetHigh) {
     this.ops.read(path, fd, buf, len, getDoubleArg(offsetLow, offsetHigh), (err, bytesRead) => {
-      return signal(err, bytesRead, buf)
+      return signal(err, bytesRead, buf.buffer)
     })
   }