diff --git a/Source/InputState.swift b/Source/InputState.swift
index 7e2987d1..c64dcc8c 100644
--- a/Source/InputState.swift
+++ b/Source/InputState.swift
@@ -245,8 +245,8 @@ class InputState: NSObject {
 
         @objc var userPhrase: String {
             let text = (composingBuffer as NSString).substring(with: markedRange)
-            let exactBegin = (composingBuffer as NSString).nextUtf16Position(for: markedRange.location)
-            let exactEnd = (composingBuffer as NSString).previousUtf16Position(for: markedRange.location)
+            let (exactBegin, _) = (composingBuffer as NSString).characterIndex(from: markedRange.location)
+            let (exactEnd, _) = (composingBuffer as NSString).characterIndex(from: markedRange.location)
             let readings = readings[exactBegin..<exactEnd]
             let joined = readings.joined(separator: "-")
             return "\(text) \(joined)"
diff --git a/Source/KeyHandler.mm b/Source/KeyHandler.mm
index 7c63b0da..2ec6a77f 100644
--- a/Source/KeyHandler.mm
+++ b/Source/KeyHandler.mm
@@ -852,7 +852,13 @@ static NSString *const kGraphVizOutputfile = @"/tmp/McBopomofo-visualization.dot
             index = [state.composingBuffer previousUtf16PositionFor:index];
             InputStateMarking *marking = [[InputStateMarking alloc] initWithComposingBuffer:state.composingBuffer cursorIndex:state.cursorIndex markerIndex:index readings:state.readings];
             marking.tooltipForInputting = state.tooltipForInputting;
-            stateCallback(marking);
+
+            if (marking.markedRange.length == 0) {
+                InputState *inputting = [marking convertToInputting];
+                stateCallback(inputting);
+            } else {
+                stateCallback(marking);
+            }
         } else {
             errorCallback();
             stateCallback(state);
@@ -868,6 +874,12 @@ static NSString *const kGraphVizOutputfile = @"/tmp/McBopomofo-visualization.dot
             index = [state.composingBuffer nextUtf16PositionFor:index];
             InputStateMarking *marking = [[InputStateMarking alloc] initWithComposingBuffer:state.composingBuffer cursorIndex:state.cursorIndex markerIndex:index readings:state.readings];
             marking.tooltipForInputting = state.tooltipForInputting;
+            if (marking.markedRange.length == 0) {
+                InputState *inputting = [marking convertToInputting];
+                stateCallback(inputting);
+            } else {
+                stateCallback(marking);
+            }
             stateCallback(marking);
         } else {
             errorCallback();