diff --git a/src/components/autocomplete/autocomplete.scss b/src/components/autocomplete/autocomplete.scss
index c9f4e457ac5..d921a24c170 100644
--- a/src/components/autocomplete/autocomplete.scss
+++ b/src/components/autocomplete/autocomplete.scss
@@ -82,7 +82,7 @@ md-autocomplete {
         left: 2px;
         width: auto;
       }
-      .md-mode-indeterminate {
+      ._md-mode-indeterminate {
         position: absolute;
         top: 0;
         left: 0;