diff --git a/flight/Modules/FlightPlan/lib/uavobject.py b/flight/Modules/FlightPlan/lib/uavobject.py
index 2ce941bcf..aafe76a43 100644
--- a/flight/Modules/FlightPlan/lib/uavobject.py
+++ b/flight/Modules/FlightPlan/lib/uavobject.py
@@ -288,7 +288,7 @@ class UAVObject:
 		uint32_t type;  
 		uint32_t numElements;  
 		uint8_t const *tmpStr;
-		int8_t tmpInt8;
+		int8_t tmpInt8 = 0;
 		int16_t tmpInt16;
 		int32_t tmpInt32;
 		float tmpFloat;		
diff --git a/flight/Modules/Guidance/guidance.c b/flight/Modules/Guidance/guidance.c
index d19ef9311..b978b8306 100644
--- a/flight/Modules/Guidance/guidance.c
+++ b/flight/Modules/Guidance/guidance.c
@@ -236,7 +236,7 @@ void updateVtolDesiredVelocity()
 {
 	static portTickType lastSysTime;
 	portTickType thisSysTime = xTaskGetTickCount();;
-	float dT;
+	float dT = 0;
 
 	GuidanceSettingsData guidanceSettings;
 	PositionActualData positionActual;
@@ -304,7 +304,7 @@ static void updateVtolDesiredAttitude()
 {
 	static portTickType lastSysTime;
 	portTickType thisSysTime = xTaskGetTickCount();;
-	float dT;
+	float dT = 0;
 
 	VelocityDesiredData velocityDesired;
 	VelocityActualData velocityActual;