diff --git a/README.md b/README.md
index 3f07f15..88874eb 100644
--- a/README.md
+++ b/README.md
@@ -126,7 +126,7 @@ jobs:
       run: /primes.sh -d prime-numbers
 ```
 
-The `cache` action provides a `cache-hit` output which is set to `true` when the cache is restored using the primary `key` and `false` when the cache is restored using `restore-keys` or no cache is restored.
+The `cache` action provides a `cache-hit` output which is set to `true` when the cache is restored using the primary `key` and `false` when the cache is restored using `restore-keys`. If no cache is restored, it is set to the empty string.
 
 #### Using a combination of restore and save actions