diff --git a/src/backend/libc/fs/syscalls.rs b/src/backend/libc/fs/syscalls.rs
index c95eaf561..07000f3dc 100644
--- a/src/backend/libc/fs/syscalls.rs
+++ b/src/backend/libc/fs/syscalls.rs
@@ -1908,7 +1908,7 @@ const SYS_OPENAT2: i32 = 437;
 #[cfg(all(linux_kernel, target_pointer_width = "64"))]
 const SYS_OPENAT2: i64 = 437;
 
-#[cfg(target_os = "linux")]
+#[cfg(linux_kernel)]
 pub(crate) fn sendfile(
     out_fd: BorrowedFd<'_>,
     in_fd: BorrowedFd<'_>,
diff --git a/src/fs/mod.rs b/src/fs/mod.rs
index dfeed87ad..baf9d7e14 100644
--- a/src/fs/mod.rs
+++ b/src/fs/mod.rs
@@ -51,7 +51,7 @@ mod openat2;
 #[cfg(linux_kernel)]
 mod raw_dir;
 mod seek_from;
-#[cfg(target_os = "linux")]
+#[cfg(linux_kernel)]
 mod sendfile;
 #[cfg(not(target_os = "espidf"))]
 mod special;
@@ -117,7 +117,7 @@ pub use openat2::openat2;
 #[cfg(linux_kernel)]
 pub use raw_dir::{RawDir, RawDirEntry};
 pub use seek_from::SeekFrom;
-#[cfg(target_os = "linux")]
+#[cfg(linux_kernel)]
 pub use sendfile::sendfile;
 #[cfg(not(target_os = "espidf"))]
 pub use special::*;