diff --git a/src/components/ha-md-dialog.ts b/src/components/ha-md-dialog.ts
index 3c0b2c0f6e..0b2362acfe 100644
--- a/src/components/ha-md-dialog.ts
+++ b/src/components/ha-md-dialog.ts
@@ -160,7 +160,6 @@ export class HaMdDialog extends MdDialog {
       }
 
       :host([type="alert"]) {
-        max-width: 320px;
         min-width: 320px;
       }
 
diff --git a/src/dialogs/generic/dialog-box.ts b/src/dialogs/generic/dialog-box.ts
index 6019cb0161..0bff1f20ca 100644
--- a/src/dialogs/generic/dialog-box.ts
+++ b/src/dialogs/generic/dialog-box.ts
@@ -179,11 +179,6 @@ class DialogBox extends LitElement {
       .destructive {
         --mdc-theme-primary: var(--error-color);
       }
-      @media all and (min-width: 600px) {
-        ha-dialog {
-          --mdc-dialog-min-width: 400px;
-        }
-      }
       ha-textfield {
         width: 100%;
       }