diff --git a/src/lib/list/list.scss b/src/lib/list/list.scss
index 2e233d8873b..6c8583e9d53 100644
--- a/src/lib/list/list.scss
+++ b/src/lib/list/list.scss
@@ -134,6 +134,7 @@ $mat-list-item-inset-divider-offset: 72px;
   }
 
   .mat-list-icon {
+    flex-shrink: 0;
     width: $icon-size;
     height: $icon-size;
     font-size: $icon-size;