ST. PAUL — Minnesota lawmakers have closed a loophole used by Amy Senser as a defense in a fatal hit-and-run.

The bill cuts off the so-called “ignorance” defense commonly used in hit-and-run cases.

Senser was convicted of criminal vehicular homicide in the 2011 death of 38-year-old Anousone Phanthavong on a darkened freeway ramp in Minneapolis. Senser maintained that she left the scene because she believed she struck a construction cone or barrel.

The bill reportedly eliminates a loophole that allows “not knowing what was struck” as a legal defense for drivers accused of hit-and-run.

The bill passed the Minnesota House 124-3 Tuesday. A Senate version passed 44-16 last week. It now awaits Gov. Mark Dayton’s signature.