diff --git a/phpBB/styles/prosilver/theme/forms.css b/phpBB/styles/prosilver/theme/forms.css
index 803c608bcf..ebc8059474 100644
--- a/phpBB/styles/prosilver/theme/forms.css
+++ b/phpBB/styles/prosilver/theme/forms.css
@@ -26,6 +26,7 @@ select {
 	border: 1px solid #666666;
 	padding: 1px;
 	background-color: #FAFAFA;
+	font-size: 1em;
 }
 
 option {