diff --git a/plugins/OStatus/actions/ostatussub.php b/plugins/OStatus/actions/ostatussub.php
index a8039ae565..7531bb6886 100644
--- a/plugins/OStatus/actions/ostatussub.php
+++ b/plugins/OStatus/actions/ostatussub.php
@@ -242,7 +242,11 @@ class OStatusSubAction extends Action
     function pullRemoteProfile()
     {
         $validate = new Validate();
-        $this->profile_uri = Discovery::normalize($this->trimmed('profile'));
+        try {
+            $this->profile_uri = Discovery::normalize($this->trimmed('profile'));
+        } catch (Exception $e) {
+            $this->profile_uri = null;
+        }
         try {
             if (Discovery::isAcct($this->profile_uri) && $validate->email(mb_substr($this->profile_uri, 5))) {
                 $this->oprofile = Ostatus_profile::ensureWebfinger($this->profile_uri);