diff --git a/Source/Modules/ControllerModules/ctlInputMethod_HandleStates.swift b/Source/Modules/ControllerModules/ctlInputMethod_HandleStates.swift
index 0c23eb42..37f80e8d 100644
--- a/Source/Modules/ControllerModules/ctlInputMethod_HandleStates.swift
+++ b/Source/Modules/ControllerModules/ctlInputMethod_HandleStates.swift
@@ -100,7 +100,7 @@ extension ctlInputMethod {
       /// 是 0 且取代範圍（replacementRange）為「NSNotFound」罷了。
       /// 也就是說，內文組字區該在哪裡出現，得由客體軟體來作主。
       client.setMarkedText(
-        state.attributedString, selectionRange: NSRange(location: state.data.u16Cursor, length: 0),
+        state.attributedString, selectionRange: NSRange(state.data.u16MarkedRange),
         replacementRange: NSRange(location: NSNotFound, length: NSNotFound)
       )
       return