Need a Planar Dimension

Please look at the attached drawing view.  Hopefully, it is apparent that I'm trying to give the welder a dimension between the side of the tube and the side of the angle.  What I get is some sort of screwy, angled dimension that has no bearing on reality.  The distance should be 19.00 inches.  Surely there's a way to do this.  Can you help?

SolidworksDrawings And Detailing