diff --git a/cpukit/include/rtems/io.h b/cpukit/include/rtems/io.h
index f4066b647a..67364df280 100644
--- a/cpukit/include/rtems/io.h
+++ b/cpukit/include/rtems/io.h
@@ -59,17 +59,6 @@ typedef struct {
  */
 /**@{**/
 
-/**
- * @brief Returns @c RTEMS_IO_ERROR.
- *
- * @retval RTEMS_IO_ERROR Only this one.
- */
-rtems_status_code rtems_io_driver_io_error(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void *arg
-);
-
 /**
  * @brief Registers and initializes the device with the device driver table
  * @a driver_table and major number @a major.