diff --git a/drivers/display/ssd1306.py b/drivers/display/ssd1306.py
index 34dca769e91f6641d41d0b2dc05472f14a9b37a5..ad57725e74beafc04b7d797b0108539499c97833 100644
--- a/drivers/display/ssd1306.py
+++ b/drivers/display/ssd1306.py
@@ -1,5 +1,6 @@
 # MicroPython SSD1306 OLED driver, I2C and SPI interfaces
 
+from micropython import const
 import time
 import framebuf
 
diff --git a/drivers/nrf24l01/nrf24l01.py b/drivers/nrf24l01/nrf24l01.py
index a244b0b25d5082191dd246a3735871ebe1b78ea0..3c79650bf0f3c11cf944cff6cebebe2acc79b324 100644
--- a/drivers/nrf24l01/nrf24l01.py
+++ b/drivers/nrf24l01/nrf24l01.py
@@ -1,6 +1,7 @@
 """NRF24L01 driver for Micro Python
 """
 
+from micropython import const
 import pyb
 
 # nRF24L01+ registers
diff --git a/drivers/sdcard/sdcard.py b/drivers/sdcard/sdcard.py
index fc7a8af7c59b377c12cea6acdabace89366fc01a..191630aebd4aa05ab10bc57cddd86f0a1280fb3a 100644
--- a/drivers/sdcard/sdcard.py
+++ b/drivers/sdcard/sdcard.py
@@ -21,6 +21,7 @@ Example usage on ESP8266:
 
 """
 
+from micropython import const
 import time
 
 
diff --git a/esp8266/modules/ds18x20.py b/esp8266/modules/ds18x20.py
index fc53048f8e9c70f6f39e2cb99d4caee10b43a9fc..bf0609483594ad90756f900729b2a5ef032636c0 100644
--- a/esp8266/modules/ds18x20.py
+++ b/esp8266/modules/ds18x20.py
@@ -1,6 +1,8 @@
 # DS18x20 temperature sensor driver for MicroPython.
 # MIT license; Copyright (c) 2016 Damien P. George
 
+from micropython import const
+
 _CONVERT = const(0x44)
 _RD_SCRATCH = const(0xbe)
 _WR_SCRATCH = const(0x4e)
diff --git a/esp8266/modules/onewire.py b/esp8266/modules/onewire.py
index 06b216a57a6e46763eaf557824208b71dffe88d5..83318d1a4727c15b18c42e65012a836a98e35702 100644
--- a/esp8266/modules/onewire.py
+++ b/esp8266/modules/onewire.py
@@ -1,6 +1,7 @@
 # 1-Wire driver for MicroPython on ESP8266
 # MIT license; Copyright (c) 2016 Damien P. George
 
+from micropython import const
 import _onewire as _ow
 
 class OneWireError(Exception):
diff --git a/stmhal/boards/STM32F4DISC/staccel.py b/stmhal/boards/STM32F4DISC/staccel.py
index 7296662caca73680d9423812f20a115452796eee..2f2561d1cb04e02b5f0923fa484eb85625d45be5 100644
--- a/stmhal/boards/STM32F4DISC/staccel.py
+++ b/stmhal/boards/STM32F4DISC/staccel.py
@@ -14,6 +14,7 @@ See:
     STM32Cube_FW_F4_V1.1.0/Projects/STM32F4-Discovery/Demonstrations/Src/main.c
 """
 
+from micropython import const
 from pyb import Pin
 from pyb import SPI