diff --git a/docs/reference/index.md b/docs/reference/index.md
index 2dbd0ca..1e3b339 100644
--- a/docs/reference/index.md
+++ b/docs/reference/index.md
@@ -50,11 +50,11 @@ The values for each key currently match its default.
 # Optional startup delay ("jitter") applied before each backup run.
 # The jitter introduces a random delay between 0 and the given duration,
 #
-# The value must be a valid Go duration string, e.g. "30s", "2m", or "500ms".
 # Set to "0s" or omit the variable to disable jitter completely.
-# Default = "0s".
+# Default = "0s". In case you need to adjust this value, supply a duration
+# value as per https://pkg.go.dev/time#ParseDuration to `BACKUP_JITTER`.
 #
-# BACKUP_JITTER="10s"
+# BACKUP_JITTER="0s"
 
 # ---