1 files changed, 4 insertions, 1 deletions

diff --git a/crates/ra_hir/src/db.rs b/crates/ra_hir/src/db.rs
index 8af0a3176..f88ae61bb 100644
--- a/crates/ra_hir/src/db.rs
+++ b/crates/ra_hir/src/db.rs
@@ -42,7 +42,10 @@ pub trait DefDatabase: SourceDatabase {
     #[salsa::invoke(crate::ids::macro_def_query)]
     fn macro_def(&self, macro_id: MacroDefId) -> Option<Arc<mbe::MacroRules>>;
 
-    #[salsa::invoke(HirFileId::hir_parse_query)]
+    #[salsa::invoke(crate::ids::macro_arg_query)]
+    fn macro_arg(&self, macro_call: ids::MacroCallId) -> Option<Arc<tt::Subtree>>;
+
+    #[salsa::invoke(crate::ids::HirFileId::hir_parse_query)]
     fn hir_parse(&self, file_id: HirFileId) -> TreeArc<SourceFile>;
 
     #[salsa::invoke(crate::adt::StructData::struct_data_query)]