diff --git a/sha2/CHANGELOG.md b/sha2/CHANGELOG.md
index 7dd38c2b2..d780f1fb2 100644
--- a/sha2/CHANGELOG.md
+++ b/sha2/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.11.2 (UNRELEASED)
+### Fixed
+- SHA-512 `riscv-zknh` backend selection ([#935])
+
+[#935]: https://github.com/RustCrypto/hashes/pull/935
+
 ## 0.11.1 (2026-10-12)
 ### Changed
 - Removed workaround for unaligned loads in `riscv-zknh` backend ([#879])
diff --git a/sha2/src/lib.rs b/sha2/src/lib.rs
index b4e21996b..f9c5693bc 100644
--- a/sha2/src/lib.rs
+++ b/sha2/src/lib.rs
@@ -10,7 +10,7 @@
     any(
         sha2_backend = "riscv-zknh",
         sha2_256_backend = "riscv-zknh",
-        sha2_256_backend = "riscv-zknh",
+        sha2_512_backend = "riscv-zknh",
     ),
     feature(riscv_ext_intrinsics)
 )]
diff --git a/sha2/src/sha512.rs b/sha2/src/sha512.rs
index 1822243de..75de49177 100644
--- a/sha2/src/sha512.rs
+++ b/sha2/src/sha512.rs
@@ -1,8 +1,8 @@
 cfg_if::cfg_if! {
-    if #[cfg(any(sha2_backend = "soft", sha2_256_backend = "soft"))] {
+    if #[cfg(any(sha2_backend = "soft", sha2_512_backend = "soft"))] {
         mod soft;
         use soft::compress;
-    } else if #[cfg(any(sha2_backend = "riscv-zknh", sha2_256_backend = "riscv-zknh"))] {
+    } else if #[cfg(any(sha2_backend = "riscv-zknh", sha2_512_backend = "riscv-zknh"))] {
         mod riscv_zknh;
 
         #[cfg(not(target_feature = "zknh"))]