diff --git a/src/shelly_output.cpp b/src/shelly_output.cpp
index b41ada80..bfd4f4b9 100644
--- a/src/shelly_output.cpp
+++ b/src/shelly_output.cpp
@@ -73,7 +73,15 @@ Status OutputPin::SetStatePWM(float duty, const char *source) {
   LOG(LL_INFO, ("Duty: %.3f", duty));
   if (duty == 0) {
     mgos_pwm_set(pin_, 0, 0);
-  } else {
+  }
+#if CS_PLATFORM == CS_P_ESP8266
+  else if (duty == 1) {
+    mgos_gpio_write(pin_, 1);
+    LOG(LL_INFO,
+        ("Output %d: %s (%s)", id(), (duty == 0 ? "OFF" : "ON"), source));
+  }
+#endif
+  else {
     mgos_pwm_set(pin_, 400, duty);
     LOG(LL_INFO, ("Output %d: %f (%s)", id(), duty, source));
   }