diff --git a/rust/kernel/kunit.rs b/rust/kernel/kunit.rs
index 0ba77276ae7e..824da0e9738a 100644
--- a/rust/kernel/kunit.rs
+++ b/rust/kernel/kunit.rs
@@ -18,7 +18,7 @@ pub fn err(args: fmt::Arguments<'_>) {
     #[cfg(CONFIG_PRINTK)]
     unsafe {
         bindings::_printk(
-            b"\x013%pA\0".as_ptr() as _,
+            c"\x013%pA".as_ptr() as _,
             &args as *const _ as *const c_void,
         );
     }
@@ -34,7 +34,7 @@ pub fn info(args: fmt::Arguments<'_>) {
     #[cfg(CONFIG_PRINTK)]
     unsafe {
         bindings::_printk(
-            b"\x016%pA\0".as_ptr() as _,
+            c"\x016%pA".as_ptr() as _,
             &args as *const _ as *const c_void,
         );
     }