diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs
index 1e0fd78b4dd75..589c5a5cb1229 100644
--- a/compiler/rustc_abi/src/lib.rs
+++ b/compiler/rustc_abi/src/lib.rs
@@ -2383,7 +2383,7 @@ pub enum AbiFromStrErr {
     NoExplicitUnwind,
 }
 
-// NOTE: This struct is generic over the FieldIdx and VariantIdx for rust-analyzer usage.
+// NOTE: This struct is generic over the FieldIdx for rust-analyzer usage.
 #[derive(PartialEq, Eq, Hash, Clone, Debug)]
 #[cfg_attr(feature = "nightly", derive(StableHash))]
 pub struct VariantLayout<FieldIdx: Idx> {