if it ain’t broke, don’t fix it
idiomPart ofbroke
if it ain’t broke, don’t fix it — idiom
1. Used to say that you should not try to change something that is already working
1.idiom
Definition
Used to say that you should not try to change something that is already working well.
Example
Sara kept the old software because if it ain't broke, don't fix it.
Brian said, 'If it ain't broke, don't fix it,' and left the recipe unchanged.