diff --git a/plugins/FeedsCSVParser.inc b/plugins/FeedsCSVParser.inc
index 04d79b6764b71e03319c07cb11153bee7baab768..c6f11cd90366f653ad898d95b54fc6c3713f3048 100644
--- a/plugins/FeedsCSVParser.inc
+++ b/plugins/FeedsCSVParser.inc
@@ -123,7 +123,12 @@ class FeedsCSVParser extends FeedsParser {
     $mappings = feeds_importer($this->id)->processor->config['mappings'];
     $sources = $uniques = array();
     foreach ($mappings as $mapping) {
-      $sources[] = check_plain($mapping['source']);
+      if (strpos($mapping['source'], ',') !== FALSE) {
+        $sources[] = '"' . check_plain($mapping['source']) . '"';
+      }
+      else {
+        $sources[] = check_plain($mapping['source']);
+      }
       if (!empty($mapping['unique'])) {
         $uniques[] = check_plain($mapping['source']);
       }