diff --git a/src/unix/linux_like/linux/musl/b64/mod.rs b/src/unix/linux_like/linux/musl/b64/mod.rs
index 6b6761ba03ac4..3fb059812b4ff 100644
--- a/src/unix/linux_like/linux/musl/b64/mod.rs
+++ b/src/unix/linux_like/linux/musl/b64/mod.rs
@@ -17,6 +17,8 @@ s! {
         __val: [c_ulong; 16],
     }
 
+    // PowerPC implementation is special, see the subfolder.
+    #[cfg(not(target_arch = "powerpc64"))]
     pub struct shmid_ds {
         pub shm_perm: crate::ipc_perm,
         pub shm_segsz: size_t,
diff --git a/src/unix/linux_like/linux/musl/b64/powerpc64.rs b/src/unix/linux_like/linux/musl/b64/powerpc64.rs
index 75e537a6a0b77..43d54ba00dd81 100644
--- a/src/unix/linux_like/linux/musl/b64/powerpc64.rs
+++ b/src/unix/linux_like/linux/musl/b64/powerpc64.rs
@@ -50,6 +50,18 @@ s! {
         __reserved: [c_long; 3],
     }
 
+    pub struct shmid_ds {
+        pub shm_perm: crate::ipc_perm,
+        pub shm_atime: crate::time_t,
+        pub shm_dtime: crate::time_t,
+        pub shm_ctime: crate::time_t,
+        pub shm_segsz: size_t,
+        pub shm_cpid: crate::pid_t,
+        pub shm_lpid: crate::pid_t,
+        pub shm_nattch: c_ulong,
+        __unused: [c_ulong; 2],
+    }
+
     pub struct ipc_perm {
         #[cfg(musl_v1_2_3)]
         pub __key: crate::key_t,