Current directory is not a git directory!

Every time I try to commit with husky I get this error

husky > pre-commit (node v11.15.0)
Current directory is not a git directory!
husky > pre-commit hook failed (add --no-verify to bypass)

This error is happening only when husky is activated. I have used husky before and I never had this error.

my package.json

{
  "name": "root",
  "private": true,
  "devDependencies": {
    "husky": "^2.4.0",
    "lerna": "^3.14.1",
    "lint-staged": "^8.2.0",
    "prettier": "^1.18.2"
  },
  "scripts": {
    ...
  },
  "lint-staged": {
    "src/**/*.{js,jsx,ts,tsx,json,css,scss,md}": [
      "prettier --write",
      "git add"
    ]
  },
  "husky": {
    "hooks": {
      "pre-commit": "lint-staged"
    }
  }
}

OS: Ubuntu 18.04.2 LTS Node 11.15.0 Git: 2.17.1