diff --git a/crates/ra_analysis/src/descriptors.rs b/crates/ra_analysis/src/descriptors.rs
index f64fcee16407..98429326c17c 100644
--- a/crates/ra_analysis/src/descriptors.rs
+++ b/crates/ra_analysis/src/descriptors.rs
@@ -21,7 +21,7 @@ pub fn new(root: ast::Root) -> ModuleDescriptor {
     }
 }
 
-fn modules<'a>(root: ast::Root<'a>) -> impl Iterator<Item = (SmolStr, ast::Module<'a>)> {
+fn modules(root: ast::Root<'_>) -> impl Iterator<Item = (SmolStr, ast::Module<'_>)> {
     root.modules().filter_map(|module| {
         let name = module.name()?.text();
         if !module.has_semi() {