Index: t3lib/tceforms/class.t3lib_tceforms_suggest.php
===================================================================
--- t3lib/tceforms/class.t3lib_tceforms_suggest.php	(revision 6730)
+++ t3lib/tceforms/class.t3lib_tceforms_suggest.php	(working copy)
@@ -136,7 +136,8 @@
 		$TSconfig = t3lib_BEfunc::getPagesTSconfig($pageId);
 
 		$wizardConfig = $GLOBALS['TCA'][$table]['columns'][$field]['config']['wizards']['suggest'];
-		$queryTables = t3lib_div::trimExplode(',', $GLOBALS['TCA'][$table]['columns'][$field]['config']['allowed']);
+		$queryTables = t3lib_div::trimExplode(',', $GLOBALS['TCA'][$table]['columns'][$field]['config']['allowed'] . ',' . $GLOBALS['TCA'][$table]['columns'][$field]['config']['foreign_table'], TRUE);
+		$queryTables = array_unique($queryTables);
 		$resultRows = array();
 
 			// fetch the records for each query table. A query table is a table from which records are allowed to
Index: t3lib/tceforms/class.t3lib_tceforms_suggest_defaultreceiver.php
===================================================================
--- t3lib/tceforms/class.t3lib_tceforms_suggest_defaultreceiver.php	(revision 6730)
+++ t3lib/tceforms/class.t3lib_tceforms_suggest_defaultreceiver.php	(working copy)
@@ -235,8 +235,9 @@
 				$GLOBALS['TYPO3_DB']->escapeStrForLike($searchString, $this->table).'%\'';
 
 				// Search in all fields given by label or label_alt
-			$selectFieldsList = $GLOBALS['TCA'][$this->table]['ctrl']['label'] . ',' . $GLOBALS['TCA'][$this->table]['ctrl']['label_alt'];
+			$selectFieldsList = $GLOBALS['TCA'][$this->table]['ctrl']['label'] . ',' . $GLOBALS['TCA'][$this->table]['ctrl']['label_alt'] . ',' . $this->config['additionalSearchFields'];
 			$selectFields = t3lib_div::trimExplode(',', $selectFieldsList, TRUE);
+			$selectFields = array_unique($selectFields);
 
 			$selectParts = array();
 			foreach ($selectFields as $field) {