I performed a search at Scotland's People that returned 8 results.
The marriage that you favour is listed amongst them as:
> LEIPER JOHN ADDISON MARJORY 1905 168/1 748 748 St Nicholas
i.e. Margarey/t Eddison has been indexed as Marjory Addison.
Before assuming that this is the marriage of your ancestors I would recommend reviewing the other marriages to see if any of them are equally likely.