diff --git a/ports/rp2/cyw43_configport.h b/ports/rp2/cyw43_configport.h
index b6f5b3cad8..a5ce8a9e74 100644
--- a/ports/rp2/cyw43_configport.h
+++ b/ports/rp2/cyw43_configport.h
@@ -93,6 +93,7 @@ static inline void cyw43_delay_ms(uint32_t ms) {
     int32_t start = mp_hal_ticks_us();
     while (mp_hal_ticks_us() - start < us) {
         __WFI();
+        MICROPY_EVENT_POLL_HOOK_FAST;
     }
 }