diff --git a/src/backend/libc/fs/types.rs b/src/backend/libc/fs/types.rs
index 44cc52532..eed1f6b68 100644
--- a/src/backend/libc/fs/types.rs
+++ b/src/backend/libc/fs/types.rs
@@ -951,8 +951,8 @@ pub type StatFs = c::statfs64;
 
 /// `fsid_t` for use with `StatFs`.
 #[cfg(not(any(
+    solarish,
     target_os = "haiku",
-    target_os = "illumos",
     target_os = "nto",
     target_os = "redox",
     target_os = "wasi"