diff --git a/libc-test/semver/linux-riscv64gc.txt b/libc-test/semver/linux-riscv64gc.txt
index 09519e9dfbe7e..01609e899a709 100644
--- a/libc-test/semver/linux-riscv64gc.txt
+++ b/libc-test/semver/linux-riscv64gc.txt
@@ -24,6 +24,7 @@ KEYCTL_CAPS0_RESTRICT_KEYRING
 KEYCTL_CAPS1_NS_KEYRING_NAME
 KEYCTL_CAPS1_NS_KEY_TAG
 KEYCTL_MOVE
+MADV_SOFT_OFFLINE
 MAP_SYNC
 NFT_MSG_DELOBJ
 NFT_MSG_GETOBJ
diff --git a/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs b/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs
index 9c0525cb167b2..9b76105969343 100644
--- a/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs
+++ b/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs
@@ -246,6 +246,7 @@ pub const O_DIRECT: c_int = 16384;
 pub const O_DIRECTORY: c_int = 65536;
 pub const O_LARGEFILE: c_int = 0o0100000;
 pub const O_NOFOLLOW: c_int = 131072;
+pub const MADV_SOFT_OFFLINE: c_int = 101;
 pub const MAP_HUGETLB: c_int = 262144;
 pub const MAP_LOCKED: c_int = 8192;
 pub const MAP_NORESERVE: c_int = 16384;
diff --git a/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs b/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
index 2b9b394d51d17..115ec076f6a53 100644
--- a/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+++ b/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
@@ -572,6 +572,7 @@ pub const POLLWRBAND: c_short = 0x200;
 pub const SOCK_STREAM: c_int = 1;
 pub const SOCK_DGRAM: c_int = 2;
 
+pub const MADV_SOFT_OFFLINE: c_int = 101;
 pub const MAP_ANON: c_int = 0x0020;
 pub const MAP_GROWSDOWN: c_int = 0x0100;
 pub const MAP_DENYWRITE: c_int = 0x0800;