diff --git a/shared/common-adapters/dumb.js b/shared/common-adapters/dumb.js
index 20c6639e4549..304422716b8e 100644
--- a/shared/common-adapters/dumb.js
+++ b/shared/common-adapters/dumb.js
@@ -906,7 +906,7 @@ const popupDialogMap: DumbComponentMap<PopupDialog> = {
           height: 200,
           justifyContent: 'center',
           alignItems: 'center',
-          background: globalColors.white,
+          backgroundColor: globalColors.white,
         }}>
           <Text type='Body'>Hello, world!</Text>
         </Box>