diff --git a/crates/hir/src/db.rs b/crates/hir/src/db.rs
index 7ec27af04b..e0cde689fe 100644
--- a/crates/hir/src/db.rs
+++ b/crates/hir/src/db.rs
@@ -7,7 +7,7 @@ pub use hir_def::db::*;
 pub use hir_expand::db::{
     AstIdMapQuery, ExpandDatabase, ExpandDatabaseStorage, ExpandProcMacroQuery, HygieneFrameQuery,
     InternMacroCallQuery, MacroArgTextQuery, MacroDefQuery, MacroExpandQuery,
-    ParseMacroExpansionQuery,
+    ParseMacroExpansionErrorQuery, ParseMacroExpansionQuery,
 };
 pub use hir_ty::db::*;
 
diff --git a/crates/ide-db/src/lib.rs b/crates/ide-db/src/lib.rs
index 1235449b80..a70a91c99e 100644
--- a/crates/ide-db/src/lib.rs
+++ b/crates/ide-db/src/lib.rs
@@ -152,6 +152,7 @@ impl RootDatabase {
         let lru_capacity = lru_capacity.unwrap_or(base_db::DEFAULT_LRU_CAP);
         base_db::ParseQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
         hir::db::ParseMacroExpansionQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
+        hir::db::MacroExpandQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
     }
 
     pub fn update_lru_capacities(&mut self, lru_capacities: &FxHashMap<Box<str>, usize>) {
@@ -201,6 +202,7 @@ impl RootDatabase {
             // hir_db::MacroExpandQuery
             hir_db::ExpandProcMacroQuery
             hir_db::HygieneFrameQuery
+            hir_db::ParseMacroExpansionErrorQuery
 
             // DefDatabase
             hir_db::FileItemTreeQuery