The Buffalo Bills’ plan to play one regular season game a year in Toronto is seen by some as the first step of an effort by the NFL to eventually put a team in Canada permanently. And many in Canada don’t like that idea at all.

One Canadian who doesn’t like it is Vancouver senator Larry Campbell, who has introduced a bill that would prevent the NFL from creating an expansion team in Canada or moving a current franchise north of the border.

“If this plan were to come to fruition, I, together with many others, believe that the CFL’s future would be in significant peril,” Campbell said, per the CBC. “As proud Canadians and fans of the CFL, we must make every effort to defend our own brand of football.”

Campbell’s comments point out that the NFL faces a sticky situation in Canada: The league needs to attract Canadian football fans, but it needs to do so without appearing to be taking those fans away from the CFL. Advance ticket sales for the Bills’ games at the Rogers Centre in Toronto have been robust, but it remains to be seen whether all those ticket buyers who turn to the NFL will also turn away from the CFL.