diff --git a/wp-includes/wp-db.php b/wp-includes/wp-db.php
index 1c058a35b..1a2a39e73 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -1212,7 +1212,7 @@ class wpdb {
 				$form = '%s';
 			$formatted_fields[] = $form;
 		}
-		$sql = "{$type} INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES ('" . implode( "','", $formatted_fields ) . "')";
+		$sql = "{$type} INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES (" . implode( ",", $formatted_fields ) . ")";
 		return $this->query( $this->prepare( $sql, $data ) );
 	}