diff --git a/cadvisor.go b/cadvisor.go
index 045a0d81..a1cf4949 100644
--- a/cadvisor.go
+++ b/cadvisor.go
@@ -32,7 +32,7 @@ import (
 var argPort = flag.Int("port", 8080, "port to listen")
 var argAllowLmctfy = flag.Bool("allow_lmctfy", true, "whether to allow lmctfy as a container handler")
 
-var argDbDriver = flag.String("storage_driver", "memory", "database driver name")
+var argDbDriver = flag.String("storage_driver", "memory", "storage driver to use. Options are: memory (default) and influxdb")
 
 func main() {
 	flag.Parse()
diff --git a/storagedriver.go b/storagedriver.go
index 6ee7715b..3de3f85d 100644
--- a/storagedriver.go
+++ b/storagedriver.go
@@ -27,11 +27,11 @@ import (
 
 var argSampleSize = flag.Int("samples", 1024, "number of samples we want to keep")
 var argHistoryDuration = flag.Int("history_duration", 60, "number of seconds of container history to keep")
-var argDbUsername = flag.String("storage_driver.user", "root", "database username")
-var argDbPassword = flag.String("storage_driver.password", "root", "database password")
-var argDbHost = flag.String("storage_driver.host", "localhost:8086", "database host:port")
-var argDbName = flag.String("storage_driver.name", "cadvisor", "database name")
-var argDbIsSecure = flag.Bool("storage_driver.secure", false, "use secure connection with database")
+var argDbUsername = flag.String("storage_driver_user", "root", "database username")
+var argDbPassword = flag.String("storage_driver_password", "root", "database password")
+var argDbHost = flag.String("storage_driver_host", "localhost:8086", "database host:port")
+var argDbName = flag.String("storage_driver_name", "cadvisor", "database name")
+var argDbIsSecure = flag.Bool("storage_driver_secure", false, "use secure connection with database")
 
 func NewStorageDriver(driverName string) (storage.StorageDriver, error) {
 	var storageDriver storage.StorageDriver