diff --git a/CRM/Dataprocessor/Utils/Importer.php b/CRM/Dataprocessor/Utils/Importer.php
index 37754e7fc611a7469d532a52bf76b5b02d5ed869..cd9170fdeee864c05847c8da6948c41c3adf99e9 100644
--- a/CRM/Dataprocessor/Utils/Importer.php
+++ b/CRM/Dataprocessor/Utils/Importer.php
@@ -293,7 +293,7 @@ class CRM_Dataprocessor_Utils_Importer {
         WHERE  status IN (".CRM_Dataprocessor_Status::STATUS_IN_CODE.", ".CRM_Dataprocessor_Status::STATUS_OVERRIDDEN.")
         AND source_file IS NOT NULL";
     if (count($importedIds)) {
-      $removeSql .= " AND id NOT IN (".implode($importedIds, ",").")";
+      $removeSql .= " AND id NOT IN (".implode(",", $importedIds).")";
     }
     if ($extension) {
       $removeSql .= " AND source_file LIKE '".CRM_Utils_Type::escape($extension, 'String')."/data-processors/%'";