Index: firmware/App/Controllers/AirPump.h
===================================================================
diff -u -r552a7de419344b43a3307c61141c99bfbbee7345 -raa6d45143096dfab776ce2ed7c775cfe2dd6db18
--- firmware/App/Controllers/AirPump.h	(.../AirPump.h)	(revision 552a7de419344b43a3307c61141c99bfbbee7345)
+++ firmware/App/Controllers/AirPump.h	(.../AirPump.h)	(revision aa6d45143096dfab776ce2ed7c775cfe2dd6db18)
@@ -33,12 +33,14 @@
 
 // ********** public definitions **********
 
+#pragma pack(push, 1)
 /// Payload record structure for air pump data broadcast message
 typedef struct
 {
     U32 h12State;                   ///< Air pump state status
     U32 h12Power;                   ///< Air pump power level setting
 } AIR_PUMP_PAYLOAD_T;
+#pragma pack(pop)
 
 /// Enumeration of air pump states.
 typedef enum AirPumpControllerStates