diff --git a/crates/ra_project_model/src/lib.rs b/crates/ra_project_model/src/lib.rs
index e248018184..b7f6a9b572 100644
--- a/crates/ra_project_model/src/lib.rs
+++ b/crates/ra_project_model/src/lib.rs
@@ -372,7 +372,7 @@ fn find_cargo_toml(path: &Path) -> Result<PathBuf> {
         }
         curr = path.parent();
     }
-    Err(Box::new(CargoTomlNotFoundError(path.to_path_buf())))
+    Err(CargoTomlNotFoundError(path.to_path_buf()))?
 }
 
 pub fn get_rustc_cfg_options() -> CfgOptions {