diff --git a/nselib/strict.lua b/nselib/strict.lua
index 87b22ba59..bcb88f545 100644
--- a/nselib/strict.lua
+++ b/nselib/strict.lua
@@ -5,8 +5,9 @@
 -- allows a script to add runtime checking so that undeclared globals cause
 -- an error to be raised. This is useful for finding accidental use of globals
 -- when local was intended.
+--
 -- A global variable is considered 'declared' if the script makes an assignment
--- to the global name (even nil).
+-- to the global name (even nil) in the file scope.
 --
 -- @class module
 -- @name strict