Valentina, 11, is a big fan of the "Riverdale" star and her mum used her celebrity to get a special message to him, but it seems she's not clear what show he's on.
In her Instagram thank you on Thursday, August 15, Salma wrote: "Cole, you're the best. Muchas gracias. @colesprouse #strangerthings."
The Mexican star's fans were quick to point out her mistake and she later fixed the hashtag to the appropriate "#riverdale".
In his video message to Valentina, Cole said, "Valentina, where are you Valentina? I'm in this grand empty room at Comic-Con and I was told you were going to be here but you're not so I had to send a video to you instead. If you ever see me, come say hi!".
Cole was at Comic-Con last month (July 2019) promoting "Riverdale", while Salma appeared as part of the Marvel Studios panel for the upcoming "The Eternals" film.