diff --git a/Cargo.toml b/Cargo.toml
index fe13014..f898128 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ include = ["src", "Cargo.toml", "COPYRIGHT", "LICENSE*", "/*.md"]
 rust-version = "1.84"
 
 [dependencies]
-linux-raw-sys = { version = "0.9.2", default-features = false, features = ["general", "no_std", "elf"] }
+linux-raw-sys = { version = "0.9.2", default-features = false, optional = true, features = ["general", "no_std", "elf"] }
 rustix = { version = "1.0.0", default-features = false }
 bitflags = { version = "2.4.0", default-features = false }
 log = { version = "0.4.14", default-features = false, optional = true }
@@ -79,7 +79,7 @@ optimize_for_size = []
 #
 # To use threads, it is also necessary to enable the "thread" feature.
 # To use signals, it is also necessary to enable the "signal" feature.
-take-charge = ["rustix/use-explicitly-provided-auxv", "rustix/runtime"]
+take-charge = ["linux-raw-sys", "rustix/use-explicitly-provided-auxv", "rustix/runtime"]
 
 # Enable "take-charge" mode using origin's `_start` definition.
 origin-start = ["take-charge"]
diff --git a/src/program/libc.rs b/src/program/libc.rs
index a391034..517a791 100644
--- a/src/program/libc.rs
+++ b/src/program/libc.rs
@@ -32,7 +32,7 @@
 use alloc::boxed::Box;
 #[cfg(feature = "program-at-exit")]
 use core::ptr::null_mut;
-use linux_raw_sys::ctypes::c_int;
+use libc::c_int;
 
 /// Register a function to be called when [`exit`] is called.
 #[cfg(feature = "program-at-exit")]