diff --git a/rust/src/core/rules_overhead.rs b/rust/src/core/rules_overhead.rs
index 9ff62fb587..eab98b9e6d 100644
--- a/rust/src/core/rules_overhead.rs
+++ b/rust/src/core/rules_overhead.rs
@@ -141,8 +141,7 @@ pub fn collect_rules_files(home: &Path, project: &Path) -> Vec<RulesFileCost> {
     let mut seen = std::collections::HashSet::new();
     out.retain(|f| {
         let canonical = std::fs::canonicalize(&f.path)
-            .map(|p| p.to_string_lossy().to_string())
-            .unwrap_or_else(|_| f.path.clone());
+            .map_or_else(|_| f.path.clone(), |p| p.to_string_lossy().to_string());
         seen.insert(canonical)
     });