diff --git a/tvix/castore/src/path.rs b/tvix/castore/src/path.rs
index 498f9a91b..68e4b75ec 100644
--- a/tvix/castore/src/path.rs
+++ b/tvix/castore/src/path.rs
@@ -117,6 +117,12 @@ impl Display for Path {
     }
 }
 
+impl AsRef<Path> for Path {
+    fn as_ref(&self) -> &Path {
+        self
+    }
+}
+
 /// Represents a owned PathBuf in the castore model.
 /// These are always relative, and platform-independent, which distinguishes
 /// them from the ones provided in the standard library.