diff --git a/examples/hwapi/hwconfig_z_96b_carbon.py b/examples/hwapi/hwconfig_z_96b_carbon.py
index 97fd57a07..d4f98139b 100644
--- a/examples/hwapi/hwconfig_z_96b_carbon.py
+++ b/examples/hwapi/hwconfig_z_96b_carbon.py
@@ -1,4 +1,4 @@
-from machine import Signal
+from machine import Pin, Signal
 
 # 96Boards Carbon board
 # USR1 - User controlled led, connected to PD2