diff --git a/src/material/button/_button-base.scss b/src/material/button/_button-base.scss
index 644e8b4af773..b99c16fb94cd 100644
--- a/src/material/button/_button-base.scss
+++ b/src/material/button/_button-base.scss
@@ -107,6 +107,7 @@
 @mixin mat-private-button-disabled() {
   // `[disabled]` shouldn't be necessary, but we keep it to maintain
   // compatibility with apps setting it through host bindings.
+  fieldset:disabled &,
   &[disabled],
   &.mat-mdc-button-disabled {
     cursor: default;