diff --git a/system/telnetd/Kconfig b/system/telnetd/Kconfig
index 407e1ce5ca8..67a22b5614d 100644
--- a/system/telnetd/Kconfig
+++ b/system/telnetd/Kconfig
@@ -40,6 +40,6 @@ config SYSTEM_TELNETD_SESSION_PRIORITY
 
 config SYSTEM_TELNETD_SESSION_STACKSIZE
 	int "Telnetd session task stack size"
-	default SYSTEM_NSH_STACKSIZE
+	default DEFAULT_TASK_STACKSIZE
 
 endif # SYSTEM_TELNETD