diff --git a/phpBB/adm/style/installer_footer.html b/phpBB/adm/style/installer_footer.html
index 181add5038..54e6951a12 100644
--- a/phpBB/adm/style/installer_footer.html
+++ b/phpBB/adm/style/installer_footer.html
@@ -6,9 +6,9 @@
 
 	<div id="page-footer">
 		<div class="copyright">
-			<!-- IF S_COPYRIGHT_HTML -->
+			{% if S_COPYRIGHT_HTML %}
 				{{ CREDIT_LINE }}
-			<!-- ENDIF -->
+			{% endif %}
 		</div>
 	</div>
 </div>
diff --git a/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html b/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html
index 06a9699e92..41ff5b898a 100644
--- a/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html
+++ b/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html
@@ -43,12 +43,12 @@
 	<div id="page-footer" class="page-footer">
 		<div class="page-number">{S_TIMEZONE}<br />{PAGE_NUMBER}</div>
 		<div class="copyright">
-			<p>{ CREDIT_LINE }}
+			<p>{{ CREDIT_LINE }}
 			</p>
-			<!-- IF TRANSLATION_INFO -->
+			{% if TRANSLATION_INFO %}
 			<p>{{ TRANSLATION_INFO }}
 			</p>
-			<!-- ENDIF -->
+			{% endif %}
 		</div>
 	</div>
 </div>
diff --git a/phpBB/styles/prosilver/template/viewtopic_print.html b/phpBB/styles/prosilver/template/viewtopic_print.html
index 3c77e214e0..658062f9fd 100644
--- a/phpBB/styles/prosilver/template/viewtopic_print.html
+++ b/phpBB/styles/prosilver/template/viewtopic_print.html
@@ -39,12 +39,12 @@
 	<div id="page-footer" class="page-footer">
 		<div class="page-number">{S_TIMEZONE}<br />{PAGE_NUMBER}</div>
 			<div class="copyright">
-				<p>{ CREDIT_LINE }}
+				<p>{{ CREDIT_LINE }}
 				</p>
-				<!-- IF TRANSLATION_INFO -->
+				{% if TRANSLATION_INFO %}
 				<p>{{ TRANSLATION_INFO }}
 				</p>
-				<!-- ENDIF -->
+				{% endif %}
 			</div>
 	</div>
 </div>