diff --git a/NEWS b/NEWS
index 9fa5c744..2b065e93 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,5 @@
+    - fixed string_format modifier args (wrong order) (Paul
+      Lockaby, Monte)
     - use tmp file for file writes, avoid file lock race (Monte)
     - handle embedded "$smarty.config.foo.tpl" correctly (Monte)
     - add $smarty.config.varname variable for accessing config vars (Paul
diff --git a/libs/plugins/modifier.string_format.php b/libs/plugins/modifier.string_format.php
index 3cb55da7..59b75edb 100644
--- a/libs/plugins/modifier.string_format.php
+++ b/libs/plugins/modifier.string_format.php
@@ -10,7 +10,7 @@
  */
 function smarty_modifier_string_format($string, $format)
 {
-    return sprintf($format, $string);
+    return sprintf($string, $format);
 }
 
 /* vim: set expandtab: */