diff --git a/app/Tables/Changeset.php b/app/Tables/Changeset.php
index ad2aabd..7227eea 100644
--- a/app/Tables/Changeset.php
+++ b/app/Tables/Changeset.php
@@ -591,7 +591,7 @@ class Changeset
                     // try to stop people inserting unstructured crap / malformed CSV
                     throw new NotApplicableException("Value for column {$col->name} too long.");
                 }
-                $data[$col->id] = $col->cast($val);
+                $data[$col->id] = $col->cast(trim($val));
             }
 
             if ($forTableInsert) {