Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -rea0ff19964e57c32977c8078be5dc4d6e4eee518 -rc4ec26a20dabb7272a1f4132081e1ff5970bda56
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision ea0ff19964e57c32977c8078be5dc4d6e4eee518)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision c4ec26a20dabb7272a1f4132081e1ff5970bda56)
@@ -757,12 +757,14 @@
 {
     BOOL result = FALSE;
 
-    if ( message->hdr.payloadLen == sizeof(RESERVOIR_ID_T) )
+    if ( message->hdr.payloadLen == sizeof(U32) )
     {
         RESERVOIR_ID_T reservoirID;
+        U32 resID;
 
         result = TRUE;
-        memcpy( &reservoirID, message->payload, sizeof(RESERVOIR_ID_T) );
+        memcpy( &resID, message->payload, sizeof(U32) );
+        reservoirID = (RESERVOIR_ID_T)resID;
         setActiveReservoirCmd( reservoirID );
     }
     sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_DG_2_HD, result );