diff --git a/src/lib/autocomplete/autocomplete.scss b/src/lib/autocomplete/autocomplete.scss
index 80fbcc56d6d2..a72841cbbd54 100644
--- a/src/lib/autocomplete/autocomplete.scss
+++ b/src/lib/autocomplete/autocomplete.scss
@@ -15,7 +15,8 @@ $mat-autocomplete-panel-above-offset: -24px !default;
 .mat-autocomplete-panel {
   @include mat-menu-base();
   visibility: hidden;
-
+  
+  max-width: none;
   max-height: $mat-autocomplete-panel-max-height;
   position: relative;
 
@@ -34,4 +35,4 @@ $mat-autocomplete-panel-above-offset: -24px !default;
   &.mat-autocomplete-hidden {
     visibility: hidden;
   }
-}
\ No newline at end of file
+}