diff --git a/webadmin/src/index.html b/webadmin/src/index.html
index 6b124d864..04b751941 100644
--- a/webadmin/src/index.html
+++ b/webadmin/src/index.html
@@ -3,7 +3,7 @@
 <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height" />
-    <meta http-equiv="Content-Security-Policy" content="default-src 'unsafe-inline' 'unsafe-eval' 'self' *.cloudron.io <%= apiOriginHostname %>; img-src *;" />
+    <meta http-equiv="Content-Security-Policy" content="default-src 'unsafe-inline' 'unsafe-eval' 'self' *.cloudron.io <%= apiOriginHostname %>; img-src * data:;" />
 
     <!-- this gets changed once we get the config (because angular has not loaded yet, we see template string for a flash) -->
     <title> Cloudron </title>
