diff --git a/RSSTootalizer/Website/Login.pm b/RSSTootalizer/Website/Login.pm
index 7ba7dd2..6c44f2a 100644
--- a/RSSTootalizer/Website/Login.pm
+++ b/RSSTootalizer/Website/Login.pm
@@ -20,6 +20,8 @@ sub prerender {
 	$self->{"template"} = "Login";
 	$self->{"content_type"} = "html";
 	$self->{"params"}->{"currentmode"} = "Login";
+
+	$self->{"params"}->{"instance"} = $main::FORM{"last_instance"};
 }
 
 1;
diff --git a/RSSTootalizer/Website/OAuthLogin.pm b/RSSTootalizer/Website/OAuthLogin.pm
index 76b2949..e240c2c 100644
--- a/RSSTootalizer/Website/OAuthLogin.pm
+++ b/RSSTootalizer/Website/OAuthLogin.pm
@@ -40,6 +40,7 @@ sub prerender {
 		my $user = RSSTootalizer::User->authenticate();
 		if ($user){
 			$self->{params}->{token_is_valid} = "true";
+			$self->{set_cookie} = ("last_instance=$instance; Max-Age=1209600");
 		}
 		# {"error":"The access token is invalid"}
 	}
diff --git a/static/templates/Login.html b/static/templates/Login.html
index 692400a..c4d892b 100644
--- a/static/templates/Login.html
+++ b/static/templates/Login.html
@@ -4,7 +4,7 @@
 	<form class="form-signin" method="POST" action="index.pl">
 		<h2 class="form-signin-heading">Please enter your Mastodon instance URL</h2>
 		<label for="inputUsername" class="sr-only">Mastodon instance URL</label>
-		<input type="url" id="inputInstance" name="inputInstance" class="form-control" placeholder="https://mastodon.social" required autofocus>
+		<input type="url" id="inputInstance" name="inputInstance" class="form-control" placeholder="https://mastodon.social" value="<TMPL_VAR NAME="instance">" required autofocus>
 		<button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
 
 		<input type="hidden" id="mode" name="mode" value="OAuthLogin">