diff --git a/packages/block-library/src/classic.scss b/packages/block-library/src/classic.scss
index c12983c7d9ad93..3156786cb2b2ed 100644
--- a/packages/block-library/src/classic.scss
+++ b/packages/block-library/src/classic.scss
@@ -13,3 +13,8 @@
 
 	font-size: 1.125em;
 }
+
+.wp-block-file__button {
+	background: #32373c;
+	color: $white;
+}