diff --git a/README.md b/README.md
index 1ddb603e..928c5076 100644
--- a/README.md
+++ b/README.md
@@ -71,6 +71,7 @@ releases:
       foo: bar
     chart: roboll/vault-secret-manager     # the chart being installed to create this release, referenced by `repository/chart` syntax
     version: ~1.24.1                       # the semver of the chart. range constraint is supported
+    missingFileHandler: warn # set to either "Error" or "Warn". "Error" instructs helmfile to fail when unable to find a values or secrets file. When "Warn", it prints the file and continues.
     values:
       # value files passed via --values
       - vault.yaml