diff --git a/plugins/enigma/lib/enigma_ui.php b/plugins/enigma/lib/enigma_ui.php
index ec60171cb8d..972419685bb 100644
--- a/plugins/enigma/lib/enigma_ui.php
+++ b/plugins/enigma/lib/enigma_ui.php
@@ -159,7 +159,8 @@ function password_prompt($status, $params = [])
         // A message can be encrypted with multiple private keys,
         // find the one that exists in the keyring
         foreach ($data as $keyid => $username) {
-            if ($key = $this->enigma->engine->get_key($keyid)) {
+            $key = $this->enigma->engine->get_key($keyid);
+            if ($key && $key->is_private()) {
                 if ($key->name && strpos($username, $keyid) !== false) {
                     $data[$keyid] = $key->name;
                 }