diff --git a/docs/charts_tips_and_tricks.md b/docs/charts_tips_and_tricks.md
index f1faca100..0b74af1e5 100644
--- a/docs/charts_tips_and_tricks.md
+++ b/docs/charts_tips_and_tricks.md
@@ -143,7 +143,7 @@ spec:
   template:
     metadata:
       annotations:
-        checksum/config: {{ .Files.Get "path/to/config" | sha256sum }}
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
 [...]
 ```