diff --git a/modules/util/Util/JSON.pm b/modules/util/Util/JSON.pm
index bc42cc84ffeb57a379112eeb27b102bf528fc8ff..c81bd7bc25ca481c6837b6d9a352611854b83d00 100755
--- a/modules/util/Util/JSON.pm
+++ b/modules/util/Util/JSON.pm
@@ -50,7 +50,7 @@ sub write_json_file
 =end comment
 =cut
 
-  write_text($fnm, $json_str);
+  write_text($json_fnm, $json_str);
 
   1;
 }