diff --git a/scripts/lua/modules/active_monitoring.lua b/scripts/lua/modules/active_monitoring.lua
index 4cdd838af3..3bdb224cb7 100644
--- a/scripts/lua/modules/active_monitoring.lua
+++ b/scripts/lua/modules/active_monitoring.lua
@@ -8,6 +8,7 @@ package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
 
 require "check_redis_prefs"
 require "ntop_utils"
+local format_utils = require "format_utils"
 local am_utils = require "am_utils"
 local auth = require "auth"
 
@@ -273,4 +274,4 @@ end
 
 -- ################################################
 
-return am
\ No newline at end of file
+return am