Leaf Blowers

I purchased a 150BT and when fitting the straight blower tubes together the connection between the two straight tubes isn't very tight. This causes air to leak out the sides of the tube at this connection point. How do I fix this? I tried switching the two straight tube pieces around but it didn't fix the issue. The connection between the straight pieces and the end piece is fine. The connection between the straight pieces and the tube coming out of the blower housing is fine. It is just an issue for connecting the two straight tubes together where they fit together loosely and leak.