diff --git a/crates/ir/src/lib.rs b/crates/ir/src/lib.rs
index 580519f..b04f1db 100644
--- a/crates/ir/src/lib.rs
+++ b/crates/ir/src/lib.rs
@@ -103,6 +103,9 @@ pub struct Rule<T: ProgramInfo> {
     /// The metadata for this rule.
     pub meta: T::RuleMeta,
 
+    /// The target relation of this rule.
+    pub relation: T::RelationLabel,
+
     /// The storage pattern for the head.
     pub head: Vec<QueryTerm>,