diff --git a/src/components/ha-control-number-buttons.ts b/src/components/ha-control-number-buttons.ts
index 062632b792..7977fb2190 100644
--- a/src/components/ha-control-number-buttons.ts
+++ b/src/components/ha-control-number-buttons.ts
@@ -254,7 +254,7 @@ export class HaControlNumberButton extends LitElement {
       bottom: 0;
       padding: 0;
       width: 35px;
-      height: 40px;
+      height: 100%;
       border: none;
       background: none;
       cursor: pointer;