diff --git a/Domain/Values/CustomAttributes.php b/Domain/Values/CustomAttributes.php
index acd60d806..dde9c4707 100644
--- a/Domain/Values/CustomAttributes.php
+++ b/Domain/Values/CustomAttributes.php
@@ -19,8 +19,12 @@ public static function Parse($attributes)
         $pairs = explode('!sep!', $attributes);
 
         foreach ($pairs as $pair) {
-            $nv = explode('=', $pair);
-            $ca->Add($nv[0], $nv[1]);
+            $nv = explode('=', $pair, 2);
+            if (count($nv) !== 2) {
+                Log::Debug('nv not exploded to two values: %s', print_r($nv, true));
+            } else {
+                $ca->Add($nv[0], $nv[1]);
+            }
         }
 
         return $ca;