diff --git a/procmail2notmuch/src/main.rs b/procmail2notmuch/src/main.rs
index ab452b8..a6f66a6 100644
--- a/procmail2notmuch/src/main.rs
+++ b/procmail2notmuch/src/main.rs
@@ -31,6 +31,7 @@ struct Match {
 
 #[derive(Debug, Default, Serialize, Deserialize)]
 struct Rule {
+    stop_on_match: bool,
     matches: Vec<Match>,
     tag: Option<String>,
 }