diff --git a/lib/horde/framework/Horde/Imap/Client/Socket.php b/lib/horde/framework/Horde/Imap/Client/Socket.php
index 0b3b6ab4527f3..a60b72a2b0f6d 100644
--- a/lib/horde/framework/Horde/Imap/Client/Socket.php
+++ b/lib/horde/framework/Horde/Imap/Client/Socket.php
@@ -3245,7 +3245,7 @@ protected function _parseEnvelope(Horde_Imap_Client_Tokenize $data)
 
             if (is_string($val)) {
                 // These entries are text fields.
-                $ret->$env_data[$key] = substr($val, 0, $env_str);
+                $ret->{$env_data[$key]} = substr($val, 0, $env_str);
             } else {
                 // These entries are address structures.
                 $group = null;
@@ -3287,7 +3287,7 @@ protected function _parseEnvelope(Horde_Imap_Client_Tokenize $data)
                     }
                 }
 
-                $ret->$env_data[$key] = $tmp;
+                $ret->{$env_data[$key]} = $tmp;
             }
 
             ++$key;
diff --git a/lib/horde/readme_moodle.txt b/lib/horde/readme_moodle.txt
index 3fe916bedb9e2..27435620ab364 100644
--- a/lib/horde/readme_moodle.txt
+++ b/lib/horde/readme_moodle.txt
@@ -8,6 +8,7 @@ Description of import of Horde libraries
 # Copy the following script and store it on /tmp, change it's execute bit, and run it, passing
   in your path to Horde (the directory you've cloned the repository):
     /tmp/copyhorde.sh ~/git/ext/horde/
+# MDL-52361 patched for PHP7 compatibility, after upgrade make sure it's updated upstream and remove this line
 
 ====
 #!/bin/sh