diff --git a/ports/esp32/esp32_common.cmake b/ports/esp32/esp32_common.cmake
index f66c59e..40ae988 100644
--- a/ports/esp32/esp32_common.cmake
+++ b/ports/esp32/esp32_common.cmake
@@ -53,6 +53,7 @@
 )
 
 list(APPEND MICROPY_SOURCE_PORT
+    adc.c
     main.c
     ppp_set_auth.c
     uart.c
@@ -66,7 +67,6 @@
     machine_timer.c
     machine_pin.c
     machine_touchpad.c
-    machine_adcblock.c
     machine_dac.c
     machine_i2c.c
     modmachine.c