diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -201,10 +201,10 @@ The credentials must have a policy applied that
 
 ### Amazon ECR Docker Credential Helper 
 
-| Environment Variable  | Sample Value | Description                                                       |
-| --------------------- | ------------- | ----------------------------------------------------------------- |
-| AWS_ECR_DISABLE_CACHE |               | Disables the local file auth cache if set to a non-empty value |
-| AWS_ECR_CACHE_DIR     | ~/.ecr        | Specifies the local file auth cache directory location           |
+| Environment Variable  | Sample Value  | Description                                                        |
+| --------------------- | ------------- | ------------------------------------------------------------------ |
+| AWS_ECR_DISABLE_CACHE | true          | Disables the local file auth cache if set to a non-empty value     |
+| AWS_ECR_CACHE_DIR     | ~/.ecr        | Specifies the local file auth cache directory location             |
 
 ## Usage