diff --git a/src/header/time/mod.rs b/src/header/time/mod.rs
index b5c7aa2d0c9e2b79e5d4a9fd715e3273732e72fb..0ceb776f25f6ab1f90fe2faec5fb4881fb50c4b0 100644
--- a/src/header/time/mod.rs
+++ b/src/header/time/mod.rs
@@ -72,7 +72,7 @@ pub struct sigevent;
 
 #[no_mangle]
 pub unsafe extern "C" fn asctime(timeptr: *const tm) -> *mut c_char {
-    asctime_r(timeptr, &mut ASCTIME as *mut [i8; 26] as *mut i8)
+    asctime_r(timeptr, ASCTIME.as_mut_ptr().cast())
 }
 
 #[no_mangle]