diff --git a/pkg/config/config.go b/pkg/config/config.go
index e7b3043c..598ae8b0 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -12,16 +12,17 @@ import (
 
 // Config is for tfcmt config structure
 type Config struct {
-	CI               CI `yaml:"-"`
-	Terraform        Terraform
-	Vars             map[string]string `yaml:"-"`
-	EmbeddedVarNames []string          `yaml:"embedded_var_names"`
-	Templates        map[string]string
-	Log              Log
-	GHEBaseURL       string     `yaml:"ghe_base_url"`
-	GitHubToken      string     `yaml:"-"`
-	Complement       Complement `yaml:"ci"`
-	PlanPatch        bool       `yaml:"plan_patch"`
+	CI                 CI `yaml:"-"`
+	Terraform          Terraform
+	Vars               map[string]string `yaml:"-"`
+	EmbeddedVarNames   []string          `yaml:"embedded_var_names"`
+	Templates          map[string]string
+	Log                Log
+	GHEBaseURL         string     `yaml:"ghe_base_url"`
+	GHEGraphQLEndpoint string     `yaml:"ghe_graphql_endpoint"`
+	GitHubToken        string     `yaml:"-"`
+	Complement         Complement `yaml:"ci"`
+	PlanPatch          bool       `yaml:"plan_patch"`
 }
 
 type CI struct {
diff --git a/pkg/controller/controller.go b/pkg/controller/controller.go
index c9e79cba..3331518a 100644
--- a/pkg/controller/controller.go
+++ b/pkg/controller/controller.go
@@ -123,10 +123,11 @@ func (ctrl *Controller) getNotifier(ctx context.Context) (notifier.Notifier, err
 		labels = a
 	}
 	client, err := github.NewClient(ctx, github.Config{
-		Token:   ctrl.Config.GitHubToken,
-		BaseURL: ctrl.Config.GHEBaseURL,
-		Owner:   ctrl.Config.CI.Owner,
-		Repo:    ctrl.Config.CI.Repo,
+		Token:           ctrl.Config.GitHubToken,
+		BaseURL:         ctrl.Config.GHEBaseURL,
+		GraphQLEndpoint: ctrl.Config.GHEGraphQLEndpoint,
+		Owner:           ctrl.Config.CI.Owner,
+		Repo:            ctrl.Config.CI.Repo,
 		PR: github.PullRequest{
 			Revision: ctrl.Config.CI.SHA,
 			Number:   ctrl.Config.CI.PRNumber,
diff --git a/pkg/notifier/github/client.go b/pkg/notifier/github/client.go
index 8a72599e..e8d3fa10 100644
--- a/pkg/notifier/github/client.go
+++ b/pkg/notifier/github/client.go
@@ -38,13 +38,14 @@ type Client struct {
 
 // Config is a configuration for GitHub client
 type Config struct {
-	Token   string
-	BaseURL string
-	Owner   string
-	Repo    string
-	PR      PullRequest
-	CI      string
-	Parser  terraform.Parser
+	Token           string
+	BaseURL         string
+	GraphQLEndpoint string
+	Owner           string
+	Repo            string
+	PR              PullRequest
+	CI              string
+	Parser          terraform.Parser
 	// Template is used for all Terraform command output
 	Template           *terraform.Template
 	ParseErrorTemplate *terraform.Template
@@ -100,10 +101,15 @@ func NewClient(ctx context.Context, cfg Config) (*Client, error) {
 	}
 
 	c := &Client{
-		Config:   cfg,
-		Client:   client,
-		v4Client: githubv4.NewClient(tc),
+		Config: cfg,
+		Client: client,
+	}
+	if cfg.GraphQLEndpoint == "" {
+		c.v4Client = githubv4.NewClient(tc)
+	} else {
+		c.v4Client = githubv4.NewEnterpriseClient(cfg.GraphQLEndpoint, tc)
 	}
+
 	c.common.client = c
 	c.Comment = (*CommentService)(&c.common)
 	c.Commits = (*CommitsService)(&c.common)