diff --git a/src/lib/services/PhysicalKeyboard.ts b/src/lib/services/PhysicalKeyboard.ts
index 1b2e6a4e..31061f88 100644
--- a/src/lib/services/PhysicalKeyboard.ts
+++ b/src/lib/services/PhysicalKeyboard.ts
@@ -47,7 +47,7 @@ class PhysicalKeyboard {
       }
 
       if (buttonDOM) {
-        buttonDOM.style.backgroundColor =
+        buttonDOM.style.background =
           options.physicalKeyboardHighlightBgColor || "#dadce4";
         buttonDOM.style.color =
           options.physicalKeyboardHighlightTextColor || "black";