diff --git a/CHANGELOG b/CHANGELOG
index 124b52e19..cbe7dcdc8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -8,6 +8,7 @@ CHANGELOG RoundCube Webmail
 - Applied mime_decode patch by David Lublink
 - Allowed max. attachment size now indicated in compose screen (#1485030)
 - Also capture backspace key in list mode (#1484566)
+- Allow application/pgp parts to be displayed (#1484753)
 
 2008/09/04 (alec)
 ----------
diff --git a/program/include/rcube_message.php b/program/include/rcube_message.php
index 329c39049..c18db4bdd 100644
--- a/program/include/rcube_message.php
+++ b/program/include/rcube_message.php
@@ -230,6 +230,11 @@ class rcube_message
       $structure->type = 'content';
       $this->parts[] = &$structure;
     }
+    // the same for pgp signed messages
+    else if ($message_ctype_primary == 'application' && $message_ctype_secondary == 'pgp' && !$recursive) {
+      $structure->type = 'content';
+      $this->parts[] = &$structure;
+    }
     // message contains alternative parts
     else if ($message_ctype_primary == 'multipart' && ($message_ctype_secondary == 'alternative') && is_array($structure->parts)) {
       // get html/plaintext parts