diff --git a/PanasonicAltDKEHeatpumpIR.cpp b/PanasonicAltDKEHeatpumpIR.cpp
index 108b4ed..f4605fd 100644
--- a/PanasonicAltDKEHeatpumpIR.cpp
+++ b/PanasonicAltDKEHeatpumpIR.cpp
@@ -135,7 +135,7 @@ void PanasonicAltDKEHeatpumpIR::send(IRSender& IR, uint8_t powerModeCmd, uint8_t
       break;
   }
 	
-	uint ionizer = ionizerCmd ? PANASONIC_AIRCON2_ION_ON : PANASONIC_AIRCON2_ION_OFF;
+	uint8_t ionizer = ionizerCmd ? PANASONIC_AIRCON2_ION_ON : PANASONIC_AIRCON2_ION_OFF;
 	
   sendPanasonicLong(IR, operatingMode, fanSpeed, temperature, swingV, swingH, ionizer);
 }