diff --git a/ports/esp32/main.c b/ports/esp32/main.c
index 74e31647d7..41eea29b08 100644
--- a/ports/esp32/main.c
+++ b/ports/esp32/main.c
@@ -187,7 +187,9 @@ soft_reset_exit:
 
     // Deinit uart before timers, as esp32 uart
     // depends on a timer instance
+    #if MICROPY_PY_MACHINE_UART
     machine_uart_deinit_all();
+    #endif
     machine_timer_deinit_all();
 
     #if MICROPY_PY_ESP32_PCNT
@@ -210,7 +212,9 @@ soft_reset_exit:
     mp_hal_stdout_tx_str("MPY: soft reboot\r\n");
 
     // deinitialise peripherals
+    #if MICROPY_PY_MACHINE_PWM
     machine_pwm_deinit_all();
+    #endif
     // TODO: machine_rmt_deinit_all();
     machine_pins_deinit();
     #if MICROPY_PY_MACHINE_I2C_TARGET
diff --git a/ports/mimxrt/main.c b/ports/mimxrt/main.c
index 22809916e7..dcb1ede167 100644
--- a/ports/mimxrt/main.c
+++ b/ports/mimxrt/main.c
@@ -170,8 +170,12 @@ int main(void) {
         #if MICROPY_PY_NETWORK
         mod_network_deinit();
         #endif
+        #if MICROPY_PY_MACHINE_UART
         machine_uart_deinit_all();
+        #endif
+        #if MICROPY_PY_MACHINE_PWM
         machine_pwm_deinit_all();
+        #endif
         soft_timer_deinit();
         gc_sweep_all();
         mp_deinit();
diff --git a/ports/rp2/main.c b/ports/rp2/main.c
index 1ffcabdfa0..f01522f243 100644
--- a/ports/rp2/main.c
+++ b/ports/rp2/main.c
@@ -249,15 +249,21 @@ int main(int argc, char **argv) {
         #if MICROPY_PY_NETWORK
         mod_network_deinit();
         #endif
+        #if MICROPY_PY_MACHINE_I2S
         machine_i2s_deinit_all();
+        #endif
         rp2_dma_deinit();
         rp2_pio_deinit();
         #if MICROPY_PY_BLUETOOTH
         mp_bluetooth_deinit();
         #endif
+        #if MICROPY_PY_MACHINE_PWM
         machine_pwm_deinit_all();
+        #endif
         machine_pin_deinit();
+        #if MICROPY_PY_MACHINE_UART
         machine_uart_deinit_all();
+        #endif
         #if MICROPY_PY_MACHINE_I2C_TARGET
         mp_machine_i2c_target_deinit_all();
         #endif