diff --git a/command/agent/config.go b/command/agent/config.go
index d8339fd204..16069919d8 100644
--- a/command/agent/config.go
+++ b/command/agent/config.go
@@ -544,12 +544,13 @@ type Config struct {
 	RetryInterval    time.Duration `mapstructure:"-" json:"-"`
 	RetryIntervalRaw string        `mapstructure:"retry_interval"`
 
-	// RetryJoinEC2 configuration
+	// RetryJoinEC2 specifies the configuration for auto-join on EC2.
 	RetryJoinEC2 RetryJoinEC2 `mapstructure:"retry_join_ec2"`
 
-	// The config struct for the GCE tag server discovery feature.
+	// RetryJoinGCE specifies the configuration for auto-join on GCE.
 	RetryJoinGCE RetryJoinGCE `mapstructure:"retry_join_gce"`
 
+	// RetryJoinAzure specifies the configuration for auto-join on Azure.
 	RetryJoinAzure RetryJoinAzure `mapstructure:"retry_join_azure"`
 
 	// RetryJoinWan is a list of addresses to join -wan with retry enabled.
diff --git a/command/agent/config_azure.go b/command/agent/config_azure.go
index 019b73b193..c3a87c5cfc 100644
--- a/command/agent/config_azure.go
+++ b/command/agent/config_azure.go
@@ -3,6 +3,7 @@ package agent
 import (
 	"fmt"
 	"log"
+
 	"github.com/Azure/azure-sdk-for-go/arm/network"
 	"github.com/Azure/go-autorest/autorest"
 	"github.com/Azure/go-autorest/autorest/azure"