diff --git a/client/img/logo-grey-bg-512x512px.png b/client/img/logo-grey-bg-512x512px.png
new file mode 100644
index 00000000..e956679f
Binary files /dev/null and b/client/img/logo-grey-bg-512x512px.png differ
diff --git a/client/manifest.json b/client/manifest.json
index 93ffc34a..7ea53850 100644
--- a/client/manifest.json
+++ b/client/manifest.json
@@ -10,27 +10,38 @@
 	[
 		{
 			"src": "img/logo-grey-bg-120x120px.png",
+			"type": "image/png",
 			"sizes": "120x120"
 		},
 		{
 			"src": "img/logo-grey-bg-152x152px.png",
+			"type": "image/png",
 			"sizes": "152x152"
 		},
 		{
 			"src": "img/logo-grey-bg-167x167px.png",
+			"type": "image/png",
 			"sizes": "167x167"
 		},
 		{
 			"src": "img/logo-grey-bg-180x180px.png",
+			"type": "image/png",
 			"sizes": "180x180"
 		},
 		{
 			"src": "img/logo-grey-bg-192x192px.png",
+			"type": "image/png",
 			"sizes": "192x192"
 		},
+		{
+			"src": "img/logo-grey-bg-512x512px.png",
+			"type": "image/png",
+			"sizes": "512x512"
+		},
 		{
 			"src": "img/logo-grey-bg.svg",
-			"sizes": "193x193"
+			"type": "image/svg+xml",
+			"sizes": "513x513"
 		}
 	]
 }