diff --git a/lib/gui/app/pages/main/Flash.tsx b/lib/gui/app/pages/main/Flash.tsx
index 9a67d84b..311732ca 100644
--- a/lib/gui/app/pages/main/Flash.tsx
+++ b/lib/gui/app/pages/main/Flash.tsx
@@ -293,8 +293,8 @@ export const Flash = ({
 					action={'Continue'}
 					primaryButtonProps={{ primary: false, warning: true }}
 				>
-					{_.map(warningMessages, message => (
-						<Txt whitespace="pre-line" mt={2}>
+					{_.map(warningMessages, (message, key) => (
+						<Txt key={key} whitespace="pre-line" mt={2}>
 							{message}
 						</Txt>
 					))}
diff --git a/lib/gui/app/pages/main/MainPage.tsx b/lib/gui/app/pages/main/MainPage.tsx
index 3f8047fb..4d062ba7 100644
--- a/lib/gui/app/pages/main/MainPage.tsx
+++ b/lib/gui/app/pages/main/MainPage.tsx
@@ -101,6 +101,7 @@ const MainPage = ({ $state }: any) => {
 	return (
 		<ThemedProvider style={{ height: '100%' }}>
 			<header
+				id="app-header"
 				style={{
 					width: '100%',
 					padding: '13px 14px',
diff --git a/lib/gui/css/desktop.css b/lib/gui/css/desktop.css
index aaf07b00..e830430f 100644
--- a/lib/gui/css/desktop.css
+++ b/lib/gui/css/desktop.css
@@ -21,7 +21,7 @@ body {
 
 
 /* Allow window to be dragged from anywhere */
-body > header {
+#app-header {
   -webkit-app-region: drag;
 }