Firebase deploy --only hosting also deploying functions

Question

Everytime a hit the

firebase deploy --only hosting

in my nextjs project it also deploys the functions (there is a folder in my project called functions where I coded all the functions)

when I run firebase deploy --only functions it works perfectly, only the functions are deployed

My firebase json:

{
  "functions": {
    "ignore": [
      "node_modules",
      ".git",
      "firebase-debug.log",
      "firebase-debug.*.log"
    ],
    "source": "functions"
  },
  "hosting": {
    "source": ".",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"      
    ]
  }
}