diff --git a/pkg/models/channels.go b/pkg/models/channels.go
index 400af2d..cda9f0d 100644
--- a/pkg/models/channels.go
+++ b/pkg/models/channels.go
@@ -19,7 +19,9 @@ type Channel struct {
 	Type        ChannelType     `json:"type"`
 	Account     Account         `json:"account"`
 	AccountID   uint            `json:"account_id"`
-	RealmID     *uint           `json:"realm_id"`
+
+	Realm   Realm `json:"realm"`
+	RealmID *uint `json:"realm_id"`
 }
 
 type NotifyLevel = int8
diff --git a/pkg/server/channel_members_api.go b/pkg/server/channel_members_api.go
index 3d377a2..512329f 100644
--- a/pkg/server/channel_members_api.go
+++ b/pkg/server/channel_members_api.go
@@ -132,7 +132,7 @@ func joinChannel(c *fiber.Ctx) error {
 	var channel models.Channel
 	if err := database.C.Where(&models.Channel{
 		Alias: alias,
-	}).First(&channel).Error; err != nil {
+	}).Preload("Realm").First(&channel).Error; err != nil {
 		return fiber.NewError(fiber.StatusNotFound, err.Error())
 	} else if _, _, err := services.GetAvailableChannel(channel.ID, user); err == nil {
 		return fiber.NewError(fiber.StatusBadRequest, "you already joined the channel")
@@ -140,9 +140,9 @@ func joinChannel(c *fiber.Ctx) error {
 		return fiber.NewError(fiber.StatusBadRequest, "you was impossible to join a channel without related realm")
 	}
 
-	if realm, err := services.GetRealm(channel.ID); err != nil {
+	if realm, err := services.GetRealm(channel.Realm.ExternalID); err != nil {
 		return fiber.NewError(fiber.StatusInternalServerError, fmt.Sprintf("invalid channel, related realm was not found: %v", err))
-	} else if _, err := services.GetRealmMember(realm.ID, user.ExternalID); err != nil {
+	} else if _, err := services.GetRealmMember(realm.ExternalID, user.ExternalID); err != nil {
 		return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("you are not a part of the realm: %v", err))
 	}