diff --git a/src/UI/AllThemesGui.svelte b/src/UI/AllThemesGui.svelte
index 9994fa06af..68b466b032 100644
--- a/src/UI/AllThemesGui.svelte
+++ b/src/UI/AllThemesGui.svelte
@@ -29,6 +29,7 @@
   const featureSwitches = new OsmConnectionFeatureSwitches()
   const osmConnection = new OsmConnection({
     fakeUser: featureSwitches.featureSwitchFakeUser.data,
+    shared_cookie: QueryParameters.GetQueryParameter("shared_oauth_cookie", undefined, "Used to share a session with another device - this saves logging in at another device").data,
     oauth_token: QueryParameters.GetQueryParameter(
       "oauth_token",
       undefined,