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-rw-r--r--lib/axlsx/workbook/worksheet/sheet_view.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/axlsx/workbook/worksheet/sheet_view.rb b/lib/axlsx/workbook/worksheet/sheet_view.rb
index 73e7533e..b64920bb 100644
--- a/lib/axlsx/workbook/worksheet/sheet_view.rb
+++ b/lib/axlsx/workbook/worksheet/sheet_view.rb
@@ -50,7 +50,7 @@ module Axlsx
:view, :top_left_cell, :color_id, :zoom_scale
# instance values that must be serialized as their own elements - e.g. not attributes.
- CHILD_ELEMENTS = [:pane, :selections]
+ CHILD_ELEMENTS = [:pane, :selections].freeze
# The pane object for the sheet view
# @return [Pane]