diff --git a/change_log.txt b/change_log.txt
index bc666a12..26a66964 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -3,6 +3,7 @@
 - add caching for config files in Smarty_Resource
 - bugfix disable of caching after isCached() call did not work (Forum Topic 20131)
 - add concept unique_resource to combat potentially ambiguous template_resource values when custom resource handlers are used (Forum Topic 20128)
+- bugfix multiline strings in config files could fail on longer strings (Issue #55)
 
 11.10.2011
 - add runtime checks for not matching {capture}/{/capture} calls (Forum Topic 20120)
diff --git a/libs/sysplugins/smarty_internal_configfilelexer.php b/libs/sysplugins/smarty_internal_configfilelexer.php
index 20156ae8..aad90af8 100644
--- a/libs/sysplugins/smarty_internal_configfilelexer.php
+++ b/libs/sysplugins/smarty_internal_configfilelexer.php
@@ -192,7 +192,7 @@ class Smarty_Internal_Configfilelexer
         if ($this->counter >= strlen($this->data)) {
             return false; // end of input
         }
-        $yy_global_pattern = "/\G([ \t\r]+)|\G(\\d+\\.\\d+(?=[ \t\r]*[\n#;]))|\G(\\d+(?=[ \t\r]*[\n#;]))|\G('[^'\\\\]*(?:\\\\.[^'\\\\]*)*'(?=[ \t\r]*[\n#;]))|\G(\"[^\"\\\\]*(?:\\\\.[^\"\\\\]*)*\"(?=[ \t\r]*[\n#;]))|\G(\"\"\"([^\"]|\\\\\"|\"{1,2}[^\"])*\"\"\"(?=[ \t\r]*[\n#;]))|\G([a-zA-Z]+(?=[ \t\r]*[\n#;]))|\G([^\n]+?(?=[ \t\r]*\n))|\G(\n)/iS";
+        $yy_global_pattern = "/\G([ \t\r]+)|\G(\\d+\\.\\d+(?=[ \t\r]*[\n#;]))|\G(\\d+(?=[ \t\r]*[\n#;]))|\G('[^'\\\\]*(?:\\\\.[^'\\\\]*)*'(?=[ \t\r]*[\n#;]))|\G(\"[^\"\\\\]*(?:\\\\.[^\"\\\\]*)*\"(?=[ \t\r]*[\n#;]))|\G(\"\"\"(\\w+|[^\"]|\\\\\"|\"{1,2}[^\"])*\"\"\"(?=[ \t\r]*[\n#;]))|\G([a-zA-Z]+(?=[ \t\r]*[\n#;]))|\G([^\n]+?(?=[ \t\r]*\n))|\G(\n)/iS";
 
         do {
             if ($this->mbstring_overload ? preg_match($yy_global_pattern, substr($this->data, $this->counter), $yymatches) : preg_match($yy_global_pattern,$this->data, $yymatches, null, $this->counter)) {