diff --git a/lib/G/classes/class.db.php b/lib/G/classes/class.db.php
index 93e97dc..14b31b5 100644
--- a/lib/G/classes/class.db.php
+++ b/lib/G/classes/class.db.php
@@ -318,7 +318,7 @@ class DB {
 
 		$query = 'SELECT * FROM '.$table;
 
-		if($join) {
+		if(isset($join) && $join) {
 			$query .= ' ' . $join . ' ';
 		}
 
@@ -544,4 +544,4 @@ class DB {
 }
 
 // DB class own Exception
-class DBException extends Exception {}
\ No newline at end of file
+class DBException extends Exception {}