diff --git a/src/modules/Telemetry/Sensor/PMSA003ISensor.cpp b/src/modules/Telemetry/Sensor/PMSA003ISensor.cpp
index 8567d7e70..67f00574e 100644
--- a/src/modules/Telemetry/Sensor/PMSA003ISensor.cpp
+++ b/src/modules/Telemetry/Sensor/PMSA003ISensor.cpp
@@ -62,6 +62,7 @@ void PMSA003ISensor::sleep() {
 uint32_t PMSA003ISensor::wakeUp() {
     digitalWrite(PMSA003I_ENABLE_PIN, HIGH);
     state = State::ACTIVE;
+    return PMSA003I_WARMUP_MS
 }
 #endif /* PMSA003I_ENABLE_PIN */