The former Rangers boss hopes Miller can step up.
Glasgow Rangers look to be on their way to the Scottish Premiership at the end of the season but do have Hibernian in hot pursuit of the one automatic promotion spot.
With that in mind the club did not need to lose arguably their best player for 6-8 weeks.
However, Rangers' recent win against Kilmarnock in the Scottish Cup came at a cost. Top goal-scorer Martyn Waghorn has been ruled out for six to eight weeks with a knee injury.
Waghorn has been the main goal provider at Ibrox this season - netting 28 goals in 34 games for Rangers this season. Losing him will be a big blow to their chances.
He said it was a massive blow, but called on Kenny Miller to step up and score the goals in Waghorn's absence:
"That's a blow. To lose someone who has scored the goals that he has scored and the assists he has given, the dynamism he has brought to the team. That's a loss, there is no doubt about it.
"Rangers just need to avoid some sticky results.
"They have struggled on their travels recently to get the goals that matter and I think without Waghorn then they have got to look to people like Kenny Miller, the experienced man, to steer them over the line."
36-year-old Miller has 12 goals this season and will now be tasked with the finding the net more regularly in Waghorn's absence.
Rangers fans will be hoping that manager Mark Warburton will find the formula to cope without their stsr forward in the weeks to come.
Otherwise they risk allowing Hibs in through the back door.