diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs
index 1c95cc91208d3..9e127577b61a6 100644
--- a/compiler/rustc_span/src/lib.rs
+++ b/compiler/rustc_span/src/lib.rs
@@ -157,7 +157,7 @@ scoped_tls::scoped_thread_local!(static SESSION_GLOBALS: SessionGlobals);
 // FIXME: We should use this enum or something like it to get rid of the
 // use of magic `/rust/1.x/...` paths across the board.
 #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd)]
-#[derive(HashStable_Generic, Decodable)]
+#[derive(Decodable)]
 pub enum RealFileName {
     LocalPath(PathBuf),
     /// For remapped paths (namely paths into libstd that have been mapped
@@ -269,7 +269,7 @@ impl RealFileName {
 
 /// Differentiates between real files and common virtual files.
 #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd, Hash)]
-#[derive(HashStable_Generic, Decodable, Encodable)]
+#[derive(Decodable, Encodable)]
 pub enum FileName {
     Real(RealFileName),
     /// Call to `quote!`.