diff --git a/include/nuttx/fs/fs.h b/include/nuttx/fs/fs.h
index 855a2523a4..51066ee3ed 100644
--- a/include/nuttx/fs/fs.h
+++ b/include/nuttx/fs/fs.h
@@ -436,9 +436,9 @@ struct filelist
 #endif
 
 /* The following structure defines the list of files used for standard C I/O.
- * Note that NuttX can support the standard C APIs without or without buffering
+ * Note that NuttX can support the standard C APIs with or without buffering
  *
- * When buffering us used, the following described the usage of the I/O buffer.
+ * When buffering is used, the following describes the usage of the I/O buffer.
  * The buffer can be used for reading or writing -- but not both at the same time.
  * An fflush is implied between each change in direction of access.
  *
@@ -458,7 +458,7 @@ struct filelist
  *     | RD: Available        |                WR: bufstart buffer used for writing.
  *     |                      |                RD: Pointer to last buffered read char+1
  *     +----------------------+
- *                              <- fs_bufend   Points to end end of the buffer+1
+ *                              <- fs_bufend   Points to the end of the buffer+1
  */
 
 #if CONFIG_NFILE_STREAMS > 0