diff --git a/change_log.txt b/change_log.txt
index 529e8520..5a0d5816 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -1,3 +1,6 @@
+09/02/2010
+- avoid possible notice on $smarty->cache->clear(...), $smarty->clear_cache(....)
+
 09/02/2010
 - added $smarty->_tag_stack for tracing block tag hierarchy
 
diff --git a/libs/sysplugins/smarty_internal_cacheresource_file.php b/libs/sysplugins/smarty_internal_cacheresource_file.php
index 445d9deb..57dcc00f 100644
--- a/libs/sysplugins/smarty_internal_cacheresource_file.php
+++ b/libs/sysplugins/smarty_internal_cacheresource_file.php
@@ -159,7 +159,7 @@ class Smarty_Internal_CacheResource_File {
                     } 
                 } 
                 // check compile id
-                if (isset($_compile_id) && $_parts[$_parts_count-2 - $_compile_id_offset] != $_compile_id) {
+                if (isset($_compile_id) && (!isset($_parts[$_parts_count-2 - $_compile_id_offset]) || $_parts[$_parts_count-2 - $_compile_id_offset] != $_compile_id)) {
                     continue;
                 } 
                 // check cache id
@@ -176,7 +176,7 @@ class Smarty_Internal_CacheResource_File {
                 // expired ?
                 if (isset($exp_time) && time() - @filemtime($_file) < $exp_time) {
                     continue;
-                } 
+                }
                 $_count += @unlink((string) $_file) ? 1 : 0;
             } 
         }