diff --git a/theme-check.php b/theme-check.php
index 293e1ae..f7cdb58 100644
--- a/theme-check.php
+++ b/theme-check.php
@@ -44,6 +44,7 @@ function themecheck_do_page() {
 		}
 
 		add_filter( 'extra_theme_headers', array( $this, 'tc_add_headers' ) );
+		wp_clean_themes_cache( false );
 
 		include 'checkbase.php';
 		include 'main.php';