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-rw-r--r--compiler/rustc_index_macros/src/newtype.rs6
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/rustc_index_macros/src/newtype.rs b/compiler/rustc_index_macros/src/newtype.rs
index 2a974fd2628..62de5c7c6c1 100644
--- a/compiler/rustc_index_macros/src/newtype.rs
+++ b/compiler/rustc_index_macros/src/newtype.rs
@@ -22,7 +22,7 @@ impl Parse for Newtype {
         let mut debug_format: Option<Lit> = None;
         let mut max = None;
         let mut consts = Vec::new();
-        let mut encodable = true;
+        let mut encodable = false;
         let mut ord = true;
         let mut gate_rustc_only = quote! {};
         let mut gate_rustc_only_cfg = quote! { all() };
@@ -34,8 +34,8 @@ impl Parse for Newtype {
                     gate_rustc_only_cfg = quote! { feature = "nightly" };
                     false
                 }
-                "custom_encodable" => {
-                    encodable = false;
+                "encodable" => {
+                    encodable = true;
                     false
                 }
                 "no_ord_impl" => {