diff --git a/drivers/pipes/pipe.c b/drivers/pipes/pipe.c
index 3ce23ab211..d824a0457c 100644
--- a/drivers/pipes/pipe.c
+++ b/drivers/pipes/pipe.c
@@ -171,7 +171,7 @@ static int pipe_close(FAR struct file *filep)
  *   and  places them in the array pointed to by 'fd'. fd[0] is for reading,
  *   fd[1] is for writing.
  *
- *   NOTE: mkfifo2 is a special, non-standard, NuttX-only interface.  Since
+ *   NOTE: pipe2 is a special, non-standard, NuttX-only interface.  Since
  *   the NuttX FIFOs are based in in-memory, circular buffers, the ability
  *   to control the size of those buffers is critical for system tuning.
  *
diff --git a/include/nuttx/drivers/drivers.h b/include/nuttx/drivers/drivers.h
index b2f1bbf79e..82ac9ff91a 100644
--- a/include/nuttx/drivers/drivers.h
+++ b/include/nuttx/drivers/drivers.h
@@ -223,7 +223,7 @@ ssize_t bchlib_write(FAR void *handle, FAR const char *buffer, size_t offset,
  *   and  places them in the array pointed to by 'fd'. fd[0] is for reading,
  *   fd[1] is for writing.
  *
- *   NOTE: mkfifo2 is a special, non-standard, NuttX-only interface.  Since
+ *   NOTE: pipe2 is a special, non-standard, NuttX-only interface.  Since
  *   the NuttX FIFOs are based in in-memory, circular buffers, the ability
  *   to control the size of those buffers is critical for system tuning.
  *