diff --git a/static/directives/source-commit-link.html b/static/directives/source-commit-link.html
index 7cae72bc3..9a9d78a7a 100644
--- a/static/directives/source-commit-link.html
+++ b/static/directives/source-commit-link.html
@@ -4,6 +4,6 @@
   </span>
   <span class="anchor" href="{{ getUrl(commitSha, urlTemplate) }}" target="_blank"
         is-only-text="!urlTemplate || !getUrl(commitSha, urlTemplate)">
-     {{ commitSha.substring(0, 8) }}
+     {{ commitSha.substring(0, 7) }}
   </span>
 </span>