diff --git a/phpBB/styles/prosilver/template/overall_header.html b/phpBB/styles/prosilver/template/overall_header.html
index 353ba9139a..8c63ce9cea 100644
--- a/phpBB/styles/prosilver/template/overall_header.html
+++ b/phpBB/styles/prosilver/template/overall_header.html
@@ -18,6 +18,10 @@
 	<!-- IF S_ENABLE_FEEDS_TOPIC and S_TOPIC_ID --><link rel="alternate" type="application/atom+xml" title="{L_FEED} - {L_TOPIC} - {TOPIC_TITLE}" href="{U_FEED}?f={S_FORUM_ID}&amp;t={S_TOPIC_ID}" /><!-- ENDIF -->
 <!-- ENDIF -->
 
+<!-- IF U_CANONICAL -->
+	<link rel="canonical" href="{U_CANONICAL}" />
+<!-- ENDIF -->
+
 <!--
 	phpBB style name: prosilver
 	Based on style:   prosilver (this is the default phpBB3 style)
diff --git a/phpBB/styles/subsilver2/template/overall_header.html b/phpBB/styles/subsilver2/template/overall_header.html
index 0d3e727ecd..b4a2fa5b59 100644
--- a/phpBB/styles/subsilver2/template/overall_header.html
+++ b/phpBB/styles/subsilver2/template/overall_header.html
@@ -17,6 +17,10 @@
 	<!-- IF S_ENABLE_FEEDS_TOPIC and S_TOPIC_ID --><link rel="alternate" type="application/atom+xml" title="{L_FEED} - {L_TOPIC} - {TOPIC_TITLE}" href="{U_FEED}?f={S_FORUM_ID}&amp;t={S_TOPIC_ID}" /><!-- ENDIF -->
 <!-- ENDIF -->
 
+<!-- IF U_CANONICAL -->
+	<link rel="canonical" href="{U_CANONICAL}" />
+<!-- ENDIF -->
+
 <link rel="stylesheet" href="{T_STYLESHEET_LINK}" type="text/css" />
 <link rel="stylesheet" href="{T_STYLESHEET_LANG_LINK}" type="text/css" />