diff --git a/inc/inc.ClassExtensionMgr.php b/inc/inc.ClassExtensionMgr.php
index 63e633256..e199e9836 100644
--- a/inc/inc.ClassExtensionMgr.php
+++ b/inc/inc.ClassExtensionMgr.php
@@ -318,11 +318,17 @@ $EXT_CONF = '.var_export($EXT_CONF, true).';');
 	 * @param string $version version of extension (x.y.z)
 	 * @return string name of temporary file with archive
 	 */
-	public function createArchive($extname, $version) { /* {{{ */
+	public function createArchive($extname, $version, $dir = null) { /* {{{ */
 		if(!is_dir($this->extdir ."/". $extname))
 			return false;
 
-		$tmpfile = $this->cachedir."/".$extname."-".$version.".zip";
+		if ($dir) {
+			if (!is_dir($dir))
+				return false;
+			$tmpfile = $dir."/".$extname."-".$version.".zip";
+		} else {
+			$tmpfile = $this->cachedir."/".$extname."-".$version.".zip";
+		}
 
 		if(!SeedDMS_Extension_Mgr::Zip($this->extdir."/".$extname, $tmpfile)) {
 			return false;