diff --git a/entityreference.migrate.inc b/entityreference.migrate.inc
index 1c70779..4327219 100644
--- a/entityreference.migrate.inc
+++ b/entityreference.migrate.inc
@@ -55,11 +55,12 @@ class MigrateEntityReferenceFieldHandler extends MigrateSimpleFieldHandler {
     $language = $this->getFieldLanguage($entity, $field_info, $arguments);
     // Setup the standard Field API array for saving.
     $delta = 0;
-    if (!is_array(reset($values))) {
-      $values = array($values);
-    }
-    foreach (array_filter($values) as $value) {
-      $return[$language][$delta]['target_id'] = reset($value);
+
+    // Remove NULL values from array.
+    $values = array_filter($values);
+
+    foreach ($values as $value) {
+      $return[$language][$delta]['target_id'] = $value;
       $delta++;
     }
     // Return NULL for no values in the field.