diff --git a/chrome/content/zotero-platform/win/tagselector.css b/chrome/content/zotero-platform/win/tagselector.css
index 765493cac..f822b07df 100644
--- a/chrome/content/zotero-platform/win/tagselector.css
+++ b/chrome/content/zotero-platform/win/tagselector.css
@@ -1,4 +1,3 @@
 button {
 	font-family: Segoe UI, sans-serif;
-	font-size: 1em;
 }
\ No newline at end of file
diff --git a/chrome/skin/default/zotero/bindings/tagselector.css b/chrome/skin/default/zotero/bindings/tagselector.css
index fd422e3ae..908c28501 100644
--- a/chrome/skin/default/zotero/bindings/tagselector.css
+++ b/chrome/skin/default/zotero/bindings/tagselector.css
@@ -35,6 +35,7 @@ groupbox
 	overflow: hidden;
 	text-overflow: ellipsis;
 	background-color: transparent;
+	font-size: 1em; /* Scale with font size pref */
 	text-align: left;
 	white-space: nowrap;
 	border: 1px solid transparent; /* always include border so height is same as zotero-clicky */