How to revert back to a default input field value?

I am designing a desktop system (using Material design) that shows information on a side panel related to objects on a map. Some of this information is in editable input fields. The panel does not have a save button, but the changes are immediately stored to a virtual database after an input field is edited.

How should users be able to revert back to the default input field value if he has typed a new value?

The idea I currently have is to show an icon at the end of the input field in case the default value has been changed.


I found other similar questions, but to my understanding they were talking about a placeholder/input value, in my case the default value is not a placeholder.