diff --git a/phpBB/styles/prosilver/template/ucp_pm_viewmessage.html b/phpBB/styles/prosilver/template/ucp_pm_viewmessage.html
index 22149c8b80..accea4d3dd 100644
--- a/phpBB/styles/prosilver/template/ucp_pm_viewmessage.html
+++ b/phpBB/styles/prosilver/template/ucp_pm_viewmessage.html
@@ -85,6 +85,7 @@
 		<!-- IF AUTHOR_JOINED --><dd><strong>{L_JOINED}{L_COLON}</strong> {AUTHOR_JOINED}</dd><!-- ENDIF -->
 		<!-- IF AUTHOR_FROM --><dd><strong>{L_LOCATION}{L_COLON}</strong> {AUTHOR_FROM}</dd><!-- ENDIF -->
 
+		<!-- EVENT ucp_pm_viewmessage_custom_fields_before -->
 		<!-- BEGIN custom_fields -->
 			<dd><strong>{custom_fields.PROFILE_FIELD_NAME}{L_COLON}</strong> {custom_fields.PROFILE_FIELD_VALUE}</dd>
 		<!-- END custom_fields -->