diff --git a/public/images/unknown.svg b/public/images/unknown.svg
index b15bbe699..6fffac4a8 100644
--- a/public/images/unknown.svg
+++ b/public/images/unknown.svg
@@ -1,3 +1,3 @@
-<svg height="100" width="100">
+<svg xmlns="http://www.w3.org/2000/svg" height="100" width="100">
   <circle cx="50" cy="50" r="40" fill="#c9c9c9" />
-</svg>
\ No newline at end of file
+</svg>