diff --git a/crates/ra_hir/src/db.rs b/crates/ra_hir/src/db.rs
index dcc881a3650..e8b4f0ddc39 100644
--- a/crates/ra_hir/src/db.rs
+++ b/crates/ra_hir/src/db.rs
@@ -92,9 +92,6 @@ pub trait DefDatabase: SourceDatabase {
     #[salsa::invoke(crate::impl_block::impls_in_module)]
     fn impls_in_module(&self, module: Module) -> Arc<ModuleImplBlocks>;
 
-    #[salsa::invoke(crate::impl_block::impls_in_module_source_map_query)]
-    fn impls_in_module_source_map(&self, module: Module) -> Arc<ImplSourceMap>;
-
     #[salsa::invoke(crate::impl_block::impls_in_module_with_source_map_query)]
     fn impls_in_module_with_source_map(
         &self,
diff --git a/crates/ra_hir/src/impl_block.rs b/crates/ra_hir/src/impl_block.rs
index 637f6ab8352..072670444cb 100644
--- a/crates/ra_hir/src/impl_block.rs
+++ b/crates/ra_hir/src/impl_block.rs
@@ -59,7 +59,7 @@ impl ImplBlock {
 
     /// Returns the syntax of the impl block
     pub fn source(&self, db: &impl DefDatabase) -> (HirFileId, TreeArc<ast::ImplBlock>) {
-        let source_map = db.impls_in_module_source_map(self.module);
+        let source_map = db.impls_in_module_with_source_map(self.module).1;
         let (file_id, source) = self.module.definition_source(db);
         (file_id, source_map.get(&source, self.impl_id))
     }
@@ -231,10 +231,3 @@ pub(crate) fn impls_in_module_with_source_map_query(
 pub(crate) fn impls_in_module(db: &impl DefDatabase, module: Module) -> Arc<ModuleImplBlocks> {
     db.impls_in_module_with_source_map(module).0
 }
-
-pub(crate) fn impls_in_module_source_map_query(
-    db: &impl DefDatabase,
-    module: Module,
-) -> Arc<ImplSourceMap> {
-    db.impls_in_module_with_source_map(module).1
-}
diff --git a/crates/ra_ide_api/src/change.rs b/crates/ra_ide_api/src/change.rs
index 4196a385376..445a94aa864 100644
--- a/crates/ra_ide_api/src/change.rs
+++ b/crates/ra_ide_api/src/change.rs
@@ -230,6 +230,7 @@ impl RootDatabase {
         self.query(hir::db::AstIdMapQuery).sweep(sweep);
 
         self.query(hir::db::RawItemsWithSourceMapQuery).sweep(sweep);
+        self.query(hir::db::ImplsInModuleWithSourceMapQuery).sweep(sweep);
         self.query(hir::db::BodyWithSourceMapQuery).sweep(sweep);
     }
 }