diff --git a/libs/core/core.create_dir_structure.php b/libs/core/core.create_dir_structure.php
index 999cf593..fe2d0c0f 100644
--- a/libs/core/core.create_dir_structure.php
+++ b/libs/core/core.create_dir_structure.php
@@ -31,7 +31,7 @@ function smarty_core_create_dir_structure($params, &$smarty)
             /* other-style paths */
             $_dir = str_replace('\\','/', $params['dir']);
             $_dir_parts = preg_split('!/+!', $_dir, -1, PREG_SPLIT_NO_EMPTY);
-            if (preg_match('!^((//)|([a-zA-Z]:/))!', $_dir, $_root_dir)) {
+            if (preg_match('!^((/)|([a-zA-Z]:/))!', $_dir, $_root_dir)) {
                 /* leading "//" for network volume, or "[letter]:/" for full path */
                 $_new_dir = $_root_dir[1];
                 /* remove drive-letter from _dir_parts */