diff --git a/Dynamic-filtering:-rule-syntax.md b/Dynamic-filtering:-rule-syntax.md
index 514aad5..93f1477 100644
--- a/Dynamic-filtering:-rule-syntax.md
+++ b/Dynamic-filtering:-rule-syntax.md
@@ -12,4 +12,6 @@ These rules can apply everywhere, or be specific to a web site. For instance blo
 
 Another example: `wired.com * image block`, which means "block all images when visiting a web page on wired.com".
 
-### Hostname-based rules
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+### Hostname-based rules
+
+Hostname-based rules are used to filter network resources according the their origin, i.e. where they come from. Hostname-based rules have a higher specificity than type-based rules, and thus hostname-based rules always override type-based rules whenever a network request end up matching both a type- and a hostname-based rule.
\ No newline at end of file