diff --git a/dislocker_client.py b/dislocker_client.py
index a5108ff..5101b7a 100644
--- a/dislocker_client.py
+++ b/dislocker_client.py
@@ -122,7 +122,7 @@ class Lock(customtkinter.CTkToplevel):
         self.signin_button = customtkinter.CTkButton(self.button_frame, text='サインイン', command=self.auth, font=self.button_font)
         self.signin_button.grid(row=0, column=2, padx=10, sticky="e")
 
-        self.logout_button = customtkinter.CTkButton(self.button_frame, text='ログアウト', command=self.logout, font=self.button_font)
+        self.logout_button = customtkinter.CTkButton(self.button_frame, text='サインアウト', command=self.logout, font=self.button_font)
         self.logout_button.grid(row=0, column=1, padx=10, sticky="e")
 
         self.signin_button = customtkinter.CTkButton(self.button_frame, text='ヘルプ', command=self.help_wakeup, font=self.button_font)