diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index 0c23e67ebd..3b3fc23080 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -700,8 +700,9 @@ class Reline::LineEditor
           s = ' ' * dialog.width
         else
           s = Reline::Unicode.take_range(visual_lines[start + i], old_dialog.column, dialog.width)
+          s = padding_space_with_escape_sequences(s, dialog.width)
         end
-        @output.write "\e[39m\e[49m%-#{dialog.width}s\e[39m\e[49m" % s
+        @output.write "\e[39m\e[49m#{s}\e[39m\e[49m"
         move_cursor_down(1) if i < (line_num - 1)
       end
       move_cursor_up(old_dialog.vertical_offset + line_num - 1 - y_diff)
@@ -717,8 +718,9 @@ class Reline::LineEditor
           s = ' ' * dialog.width
         else
           s = Reline::Unicode.take_range(visual_lines[start + i], old_dialog.column, dialog.width)
+          s = padding_space_with_escape_sequences(s, dialog.width)
         end
-        @output.write "\e[39m\e[49m%-#{dialog.width}s\e[39m\e[49m" % s
+        @output.write "\e[39m\e[49m#{s}\e[39m\e[49m"
         move_cursor_down(1) if i < (line_num - 1)
       end
       move_cursor_up(dialog.vertical_offset + dialog.contents.size + line_num - 1 - y_diff)
@@ -735,8 +737,9 @@ class Reline::LineEditor
           s = ' ' * width
         else
           s = Reline::Unicode.take_range(visual_lines[start + i], old_dialog.column, width)
+          s = padding_space_with_escape_sequences(s, dialog.width)
         end
-        @output.write "\e[39m\e[49m%-#{width}s\e[39m\e[49m" % s
+        @output.write "\e[39m\e[49m#{s}\e[39m\e[49m"
         move_cursor_down(1) if i < (line_num - 1)
       end
       move_cursor_up(old_dialog.vertical_offset + line_num - 1 - y_diff)
@@ -753,9 +756,10 @@ class Reline::LineEditor
           s = ' ' * width
         else
           s = Reline::Unicode.take_range(visual_lines[start + i], old_dialog.column + dialog.width, width)
+          s = padding_space_with_escape_sequences(s, dialog.width)
         end
         Reline::IOGate.move_cursor_column(dialog.column + dialog.width)
-        @output.write "\e[39m\e[49m%-#{width}s\e[39m\e[49m" % s
+        @output.write "\e[39m\e[49m#{s}\e[39m\e[49m"
         move_cursor_down(1) if i < (line_num - 1)
       end
       move_cursor_up(old_dialog.vertical_offset + line_num - 1 + y_diff)