diff --git a/libs/sysplugins/smarty_internal_compile_private_modifier.php b/libs/sysplugins/smarty_internal_compile_private_modifier.php
index 04600c84..add824dc 100644
--- a/libs/sysplugins/smarty_internal_compile_private_modifier.php
+++ b/libs/sysplugins/smarty_internal_compile_private_modifier.php
@@ -31,13 +31,13 @@ class Smarty_Internal_Compile_Private_Modifier extends Smarty_Internal_CompileBa
         foreach ($_attr['modifierlist'] as $single_modifier) {
             preg_match_all('/(\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\'|"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"|:|[^:]+)/', $single_modifier, $mod_array);
             $modifier = $mod_array[0][0];
-            $i = 1;
-            while (isset($mod_array[0][$i])) {
-                unset($mod_array[0][$i]);
-                $i = $i + 2;
+            for ($i = 0, $count = count($mod_array[0]);$i < $count;$i++) {
+                if ($mod_array[0][$i] == ':') {
+                    $mod_array[0][$i] = ',';
+                } 
             } 
             $mod_array[0][0] = $output;
-            $params = implode(",", $mod_array[0]); 
+            $params = implode('', $mod_array[0]); 
             // check for registered modifier
             if (isset($compiler->smarty->registered_plugins['modifier'][$modifier])) {
                 $function = $compiler->smarty->registered_plugins['modifier'][$modifier][0];