diff --git a/ONS-open-geography.Rmd b/ONS-open-geography.Rmd
index 447db542a24bd95bf446fa94e31b5be816d2843e..4bf2519f61e895f40e9840c6062d8f29df59d205 100644
--- a/ONS-open-geography.Rmd
+++ b/ONS-open-geography.Rmd
@@ -6,7 +6,7 @@ date: 'Last run at: `r Sys.time()`'
 output:
   bookdown::html_document2:
     fig_caption: yes
-    code_folding: hide
+    code_folding: show
     number_sections: yes
     toc: yes
     toc_depth: 4