Doesn't matter. You will be admitted to Canada by land with a Certificate of Citizenship (and a piece of ID, such as a driver's licence).
http://www.cbsa.gc.ca/travel-voyage/td-dv-eng.html
"If you do not have a passport, and are returning to Canada, the following documents can denote
identity and/or citizenship:
- NEXUS card, held by a Canadian citizen, when entering Canada by air (when coming from the U.S.), land, or marine modes
- FAST card (Free and Secure Trade), issued to a Canadian citizen (when arriving by land or marine modes only)
- Canadian Emergency Travel Document
- Canadian Temporary Passport
- Certificate of Canadian Citizenship (issued from 1954 to present)
- Enhanced Driver's License issued by a Canadian province or territory
- Enhanced Identification/Photo Card issued by a Canadian province or territory"