diff --git a/src/unix/notbsd/linux/musl/b64/aarch64.rs b/src/unix/notbsd/linux/musl/b64/aarch64.rs
index 51db30f2f1a67..23f7dd35e5c98 100644
--- a/src/unix/notbsd/linux/musl/b64/aarch64.rs
+++ b/src/unix/notbsd/linux/musl/b64/aarch64.rs
@@ -1 +1,3 @@
+pub type c_char = u8;
+
 pub const SYS_perf_event_open: ::c_long = 241;
diff --git a/src/unix/notbsd/linux/musl/b64/mod.rs b/src/unix/notbsd/linux/musl/b64/mod.rs
index 0501c553c3478..afe41fad8429d 100644
--- a/src/unix/notbsd/linux/musl/b64/mod.rs
+++ b/src/unix/notbsd/linux/musl/b64/mod.rs
@@ -1,4 +1,3 @@
-pub type c_char = i8;
 pub type wchar_t = i32;
 pub type c_long = i64;
 pub type c_ulong = u64;
diff --git a/src/unix/notbsd/linux/musl/b64/powerpc64.rs b/src/unix/notbsd/linux/musl/b64/powerpc64.rs
index bb81863654136..4b8ca10aab57b 100644
--- a/src/unix/notbsd/linux/musl/b64/powerpc64.rs
+++ b/src/unix/notbsd/linux/musl/b64/powerpc64.rs
@@ -1 +1,3 @@
+pub type c_char = u8;
+
 pub const SYS_perf_event_open: ::c_long = 319;
diff --git a/src/unix/notbsd/linux/musl/b64/x86_64.rs b/src/unix/notbsd/linux/musl/b64/x86_64.rs
index 02324dae3029f..2cfd903ca84fb 100644
--- a/src/unix/notbsd/linux/musl/b64/x86_64.rs
+++ b/src/unix/notbsd/linux/musl/b64/x86_64.rs
@@ -1,3 +1,5 @@
+pub type c_char = i8;
+
 s! {
     pub struct mcontext_t {
         __private: [u64; 32],