diff --git a/templates/partials/modals/post_history.tpl b/templates/partials/modals/post_history.tpl
index 6a2ac6e..0e0d7aa 100644
--- a/templates/partials/modals/post_history.tpl
+++ b/templates/partials/modals/post_history.tpl
@@ -1,4 +1,4 @@
-<p>
+<p class="number-of-diffs">
 	<!-- IF numDiffs -->
 	[[topic:diffs.description, {numDiffs}]]
 	<!-- ELSE -->