diff --git a/src/public/app/widgets/type_widgets/options/appearance/code_block.js b/src/public/app/widgets/type_widgets/options/appearance/code_block.js
index 75c49e411..6bc4a354e 100644
--- a/src/public/app/widgets/type_widgets/options/appearance/code_block.js
+++ b/src/public/app/widgets/type_widgets/options/appearance/code_block.js
@@ -105,6 +105,6 @@ export default class CodeBlockOptions extends OptionsWidget {
         }
         this.$themeSelect.val(options.codeBlockTheme);
         this.setCheckboxState(this.$wordWrap, options.codeBlockWordWrap);
-        this.$widget.closest(".note-detail-printable").toggleClass("word-wrap", options.codeBlockWordWrap);
+        this.$widget.closest(".note-detail-printable").toggleClass("word-wrap", options.codeBlockWordWrap === "true");
     }
 }
\ No newline at end of file