diff --git a/README.md b/README.md
index a955fb67..1fe24f6e 100644
--- a/README.md
+++ b/README.md
@@ -373,7 +373,7 @@ You can skip the client-side code coverage hooks by setting the environment vari
 # tell Cypress to set environment variable "coverage" to false
 cypress run --env coverage=false
 # or pass the environment variable
-CYPRESS_coverage=false cypress run
+CYPRESS_COVERAGE=false cypress run
 ```
 
 or set it to `false` in the `cypress.json` file
diff --git a/support.js b/support.js
index 5ba64f0d..25249f59 100644
--- a/support.js
+++ b/support.js
@@ -214,7 +214,7 @@ const registerHooks = () => {
 // pass environment variable coverage=false
 //  cypress run --env coverage=false
 // or
-//  CYPRESS_coverage=false cypress run
+//  CYPRESS_COVERAGE=false cypress run
 // see https://on.cypress.io/environment-variables
 
 // to avoid "coverage" env variable being case-sensitive, convert to lowercase