diff --git a/phpBB/styles/prosilver/theme/links.css b/phpBB/styles/prosilver/theme/links.css
index 886e2a13de..66c3aed03e 100644
--- a/phpBB/styles/prosilver/theme/links.css
+++ b/phpBB/styles/prosilver/theme/links.css
@@ -71,6 +71,10 @@ a.lastsubject {
 	text-decoration: none;
 }
 
+a.lastsubject:hover {
+	text-decoration: underline;
+}
+
 /* Post body links */
 .postlink {
 	text-decoration: none;
diff --git a/phpBB/styles/subsilver2/theme/stylesheet.css b/phpBB/styles/subsilver2/theme/stylesheet.css
index 4bb9e6f9bf..9e258ea778 100644
--- a/phpBB/styles/subsilver2/theme/stylesheet.css
+++ b/phpBB/styles/subsilver2/theme/stylesheet.css
@@ -427,6 +427,10 @@ a.lastsubject {
 	text-decoration: none;
 }
 
+a.lastsubject:hover {
+	text-decoration: underline;
+}
+
 th a,
 th a:visited {
 	color: #FFA34F !important;