diff --git a/packages/clay-css/src/scss/mixins/_globals.scss b/packages/clay-css/src/scss/mixins/_globals.scss
index 82952bc9c0..d891c2fae8 100644
--- a/packages/clay-css/src/scss/mixins/_globals.scss
+++ b/packages/clay-css/src/scss/mixins/_globals.scss
@@ -274,6 +274,8 @@
 							transition: none;
 						}
 					}
+				} @else if ($key == 'extend') {
+					@extend #{$value} !optional;
 				} @else if ($key == 'user-select') {
 					-ms-user-select: $value;
 					-moz-user-select: $value;