The text of the Tuesday speech, in which Macklem said no further interest rate hikes would be needed if inflation falls as expected, was subsequently removed and then published at the correct time, said Paul Badertscher, a bank spokesman.
Traders and analysts closely watch speeches by central bank leaders, and remarks on market-sensitive issues like interest rates are often released to news organizations under embargo.
"I can confirm that due to an error, the speech text was
inadvertently published on the Bank's web site 12 minutes
early," Badertscher said in a statement.
"The Bank is reviewing its procedures to ensure it maintains
its long-held high standards for publishing content in line with
committed embargo times," Badertscher added.
(Reporting by Rami Ayyub)