diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index 75281c6c8b..884627b73b 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -1327,7 +1327,7 @@ class Reline::LineEditor
       end
     end
     @line = '' unless @line
-    if @config.editing_mode_is?(:emacs)
+    if @config.editing_mode_is?(:emacs, :vi_insert)
       @cursor_max = @cursor = calculate_width(@line)
       @byte_pointer = @line.bytesize
     elsif @config.editing_mode_is?(:vi_command)