1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_query_system/src/ich/impls_syntax.rs b/compiler/rustc_query_system/src/ich/impls_syntax.rs
index 52dd336313a..29a28b10a06 100644
--- a/compiler/rustc_query_system/src/ich/impls_syntax.rs
+++ b/compiler/rustc_query_system/src/ich/impls_syntax.rs
@@ -116,7 +116,7 @@ impl<'tcx> HashStable<StableHashingContext<'tcx>> for rustc_feature::Features {
         self.enabled_lib_features().hash_stable(hcx, hasher);
 
         // FIXME: why do we hash something that is a compile-time constant?
-        for feature in rustc_feature::UNSTABLE_FEATURES.iter() {
+        for feature in rustc_feature::UNSTABLE_LANG_FEATURES.iter() {
             feature.name.hash_stable(hcx, hasher);
         }
     }