diff --git a/minecraft/protocol/login/data.go b/minecraft/protocol/login/data.go
index dd7c59fe..aa51d9b4 100644
--- a/minecraft/protocol/login/data.go
+++ b/minecraft/protocol/login/data.go
@@ -105,6 +105,8 @@ type ClientData struct {
 	// GUIScale is the GUI scale of the player. It is by default 0, and is otherwise -1 or -2 for a smaller
 	// GUI scale than usual.
 	GUIScale int `json:"GuiScale"`
+	// IsEditorMode is a value to dictate if the player is in editor mode.
+	IsEditorMode bool
 	// LanguageCode is the language code of the player. It looks like 'en_UK'. It follows the ISO language
 	// codes, but hyphens ('-') are replaced with underscores. ('_')
 	LanguageCode string