(NEWSER) – Four years ago, 20-year-old Myriam Ducre-Lemay died after kissing her boyfriend who had just eaten a peanut butter sandwich, CTV News reports. Now her mother, Micheline Ducre, is speaking out to keep the same thing from happening to anyone else's kids.

After getting home from a party, Myriam's boyfriend made toast with peanut butter, then kissed Myriam goodnight, according to CJAD. The Telegraph reports Myriam quickly had trouble breathing. Her asthma inhaler didn't help, and she had her boyfriend call 911. Paramedics arrived within minutes but were still too late; Myriam died at the hospital from a lack of oxygen to her brain.

Ducre says her daughter had recently told her new boyfriend she loved him. "Sadly, she did not have the time to tell him she had a peanut allergy."