diff --git a/oauth.go b/oauth.go
index 3c853faea..ded8c73af 100644
--- a/oauth.go
+++ b/oauth.go
@@ -33,17 +33,18 @@ type OAuthResponse struct {
 
 // OAuthV2Response ...
 type OAuthV2Response struct {
-	AccessToken     string                       `json:"access_token"`
-	TokenType       string                       `json:"token_type"`
-	Scope           string                       `json:"scope"`
-	BotUserID       string                       `json:"bot_user_id"`
-	AppID           string                       `json:"app_id"`
-	Team            OAuthV2ResponseTeam          `json:"team"`
-	IncomingWebhook OAuthResponseIncomingWebhook `json:"incoming_webhook"`
-	Enterprise      OAuthV2ResponseEnterprise    `json:"enterprise"`
-	AuthedUser      OAuthV2ResponseAuthedUser    `json:"authed_user"`
-	RefreshToken    string                       `json:"refresh_token"`
-	ExpiresIn       int                          `json:"expires_in"`
+	AccessToken         string                       `json:"access_token"`
+	TokenType           string                       `json:"token_type"`
+	Scope               string                       `json:"scope"`
+	BotUserID           string                       `json:"bot_user_id"`
+	AppID               string                       `json:"app_id"`
+	Team                OAuthV2ResponseTeam          `json:"team"`
+	IncomingWebhook     OAuthResponseIncomingWebhook `json:"incoming_webhook"`
+	Enterprise          OAuthV2ResponseEnterprise    `json:"enterprise"`
+	IsEnterpriseInstall bool                         `json:"is_enterprise_install"`
+	AuthedUser          OAuthV2ResponseAuthedUser    `json:"authed_user"`
+	RefreshToken        string                       `json:"refresh_token"`
+	ExpiresIn           int                          `json:"expires_in"`
 	SlackResponse
 }
 
diff --git a/slash.go b/slash.go
index b2c509476..a41b7677a 100644
--- a/slash.go
+++ b/slash.go
@@ -6,20 +6,21 @@ import (
 
 // SlashCommand contains information about a request of the slash command
 type SlashCommand struct {
-	Token          string `json:"token"`
-	TeamID         string `json:"team_id"`
-	TeamDomain     string `json:"team_domain"`
-	EnterpriseID   string `json:"enterprise_id,omitempty"`
-	EnterpriseName string `json:"enterprise_name,omitempty"`
-	ChannelID      string `json:"channel_id"`
-	ChannelName    string `json:"channel_name"`
-	UserID         string `json:"user_id"`
-	UserName       string `json:"user_name"`
-	Command        string `json:"command"`
-	Text           string `json:"text"`
-	ResponseURL    string `json:"response_url"`
-	TriggerID      string `json:"trigger_id"`
-	APIAppID       string `json:"api_app_id"`
+	Token               string `json:"token"`
+	TeamID              string `json:"team_id"`
+	TeamDomain          string `json:"team_domain"`
+	EnterpriseID        string `json:"enterprise_id,omitempty"`
+	EnterpriseName      string `json:"enterprise_name,omitempty"`
+	IsEnterpriseInstall bool   `json:"is_enterprise_install"`
+	ChannelID           string `json:"channel_id"`
+	ChannelName         string `json:"channel_name"`
+	UserID              string `json:"user_id"`
+	UserName            string `json:"user_name"`
+	Command             string `json:"command"`
+	Text                string `json:"text"`
+	ResponseURL         string `json:"response_url"`
+	TriggerID           string `json:"trigger_id"`
+	APIAppID            string `json:"api_app_id"`
 }
 
 // SlashCommandParse will parse the request of the slash command
@@ -32,6 +33,7 @@ func SlashCommandParse(r *http.Request) (s SlashCommand, err error) {
 	s.TeamDomain = r.PostForm.Get("team_domain")
 	s.EnterpriseID = r.PostForm.Get("enterprise_id")
 	s.EnterpriseName = r.PostForm.Get("enterprise_name")
+	s.IsEnterpriseInstall = r.PostForm.Get("is_enterprise_install") == "true"
 	s.ChannelID = r.PostForm.Get("channel_id")
 	s.ChannelName = r.PostForm.Get("channel_name")
 	s.UserID = r.PostForm.Get("user_id")