diff --git a/docs/reference/recipe_file.md b/docs/reference/recipe_file.md
index 0e52afc3..2792495d 100644
--- a/docs/reference/recipe_file.md
+++ b/docs/reference/recipe_file.md
@@ -1102,7 +1102,7 @@ This can be used for some light templating, for example:
 
 ```yaml
 build:
-  string: ${{ env.get("GIT_BUILD_STRING") }}_${{ PKG_HASH }}
+  string: ${{ env.get("GIT_BUILD_STRING") }}_${{ hash }}
 ```
 
 #### `match` function