diff --git a/packages/ra-ui-materialui/src/layout/Layout.js b/packages/ra-ui-materialui/src/layout/Layout.js
index a5b92b11e46..c8b10c33665 100644
--- a/packages/ra-ui-materialui/src/layout/Layout.js
+++ b/packages/ra-ui-materialui/src/layout/Layout.js
@@ -39,6 +39,7 @@ const styles = theme => ({
         flexDirection: 'column',
         flexGrow: 2,
         padding: theme.spacing.unit * 3,
+        minWidth: 0,
         [theme.breakpoints.up('xs')]: {
             marginTop: '4em',
             paddingLeft: 5,