diff --git a/source/wp-content/mu-plugins/theme-switcher.php b/source/wp-content/mu-plugins/theme-switcher.php
index 06f816e0..f6bfc59c 100644
--- a/source/wp-content/mu-plugins/theme-switcher.php
+++ b/source/wp-content/mu-plugins/theme-switcher.php
@@ -55,7 +55,7 @@ function should_use_new_theme() {
 		'/enterprise/media/',
 		'/hosting/',
 	);
-	if ( in_array( $request_uri, $old_theme_pages ) ) {
+	if ( in_array( strtolower( $request_uri ), $old_theme_pages ) ) {
 		return false;
 	}