diff --git a/.github/workflows/update-pr-metadata.yml b/.github/workflows/update-pr-metadata.yml
index 2c0fd09c7..d3a846c82 100644
--- a/.github/workflows/update-pr-metadata.yml
+++ b/.github/workflows/update-pr-metadata.yml
@@ -83,9 +83,9 @@ jobs:
               return `|${filename}|${format(Number(diff))}|`;
             }).join('\n');
 
-            return `#### Size Diff (Compare to \`master\`)\n**Total** ${format(diff)}\n${
-              result.length ? `\n${filesHeader}${filesData}` : ''
-            }\n`;
+            return `#### COMPARE TO \`master\`\n**Total Size Diff** ${format(diff)}\n${
+              result.length ? `\n<details>\n<summary><b>Diff by File</b></summary>\n\n${filesHeader}${filesData}</details>\n` : ''
+            }`;
       
       - uses: marocchino/sticky-pull-request-comment@v2
         with: