Error: chart not found in repository

[sanyer]

Using this command

docker run -v $PWD:/kong -ti containersol/helm-convert:v0.5.3 convert --dep-up --name dev --namespace kong-dev --repo https://charts.konghq.com --destination /kong/kustomize kong/kong

throws an error

Error: chart "kong/kong/kong" not found in https://charts.konghq.com repository

Meanwhile helm repo add https://charts.konghq.com works fine on this container.

Was able to workaround this issue by specifying link to the chart itself:

docker run -v $PWD:/kong -ti containersol/helm-convert:v0.5.3 convert --dep-up --name dev --namespace kong-dev --destination /kong/kustomize https://github.com/Kong/charts/releases/download/kong-1.10.0/kong-1.10.0.tgz