diff --git a/src/components/flex/_flex_group.scss b/src/components/flex/_flex_group.scss
index b59913e4b46..878c2a5b786 100644
--- a/src/components/flex/_flex_group.scss
+++ b/src/components/flex/_flex_group.scss
@@ -5,7 +5,7 @@
 
   .euiFlexItem {
     flex-grow: 1;
-    flex-basis: 0;
+    flex-basis: 0%;
   }
 }