Fix unbound error (#2039)
Fix unbound error (#2039)


fkazimierczak/flask,drewja/flask,dawran6/flask,pallets/flask,mitsuhiko/flask,drewja/flask,auready/flask,tristanfisher/flask,drewja/flask,mitsuhiko/flask,tristanfisher/flask,pallets/flask,fkazimierczak/flask,fkazimierczak/flask,dawran6/flask,pallets/flask,auready/flask