diff --git a/ports/litex/mpconfigport.mk b/ports/litex/mpconfigport.mk
index af6a94e64a..9fa8ec0575 100644
--- a/ports/litex/mpconfigport.mk
+++ b/ports/litex/mpconfigport.mk
@@ -28,6 +28,7 @@ CIRCUITPY_DISPLAYIO = 0
 CIRCUITPY_FREQUENCYIO = 0
 CIRCUITPY_I2CPERIPHERAL = 0
 CIRCUITPY_NVM = 0
+CIRCUITPY_PWMIO = 0
 CIRCUITPY_PULSEIO = 0
 CIRCUITPY_ROTARYIO = 0
 CIRCUITPY_RTC = 0