diff --git a/storage/config.go b/storage/config.go
index 8264d4cb..b20a7528 100644
--- a/storage/config.go
+++ b/storage/config.go
@@ -2,6 +2,7 @@ package storage
 
 // Config is the configuration for alerting providers
 type Config struct {
-	// File is the path of the file to use when using file.Store
+	// File is the path of the file to use for persistence
+	// If blank, persistence is disabled.
 	File string `yaml:"file"`
 }