if it ain't broke don't fix it

Idioms  

1. Don't meddle with something that's functioning adequately. For example, So long as they like our proposal let's not change it; if it ain't broke don't fix it. This folksy and deliberately ungrammatical expression dates from the mid-1900s. For a synonym, see leave well enough alone.

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Example Sentences

There are those who say "if it ain't broke, don't fix it".

From BBC • Mar. 24, 2025

Anderson’s point is, simply, if it ain’t broke, don’t fix it.

From Seattle Times • Dec. 7, 2023

I figure, if it ain’t broke, don’t fix it.

From Los Angeles Times • Aug. 4, 2022

The creators of the latest “Jumanji” sequel have begun from an age-old premise - if it ain’t broke, don’t fix it.

From Washington Times • Dec. 11, 2019

In the run up to the 1999 referendum, he was front and centre, telling Australians that if it ain’t broke, don’t fix it.

From The Guardian • Sep. 5, 2015