diff --git a/src/lib.rs b/src/lib.rs
index a69051c..c765f32 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -41,6 +41,6 @@ pub extern "C" fn kernel_main() -> ! {
 // TODO: When display output is coded, make sure panic outputs panic information.
 // ! You can ignore any errors that appear in IDE, we do not use std.
 #[panic_handler]
-pub extern "Rust" fn panic(_info: &PanicInfo) -> ! {
+pub fn panic(_info: &PanicInfo) -> ! {
   loop {}
 }
diff --git a/src/peripheral/drivers/timer/util.rs b/src/peripheral/drivers/timer/util.rs
index 888a528..0507fe4 100644
--- a/src/peripheral/drivers/timer/util.rs
+++ b/src/peripheral/drivers/timer/util.rs
@@ -5,6 +5,8 @@ use super::timer_value;
 pub fn wait_nanos(nanos: u32) {
   unsafe {
     let start: u32 = timer_value();
-    while timer_value() < (start + nanos) { hint::spin_loop() }
+    while timer_value() < (start + nanos) {
+      hint::spin_loop()
+    }
   }
-}
\ No newline at end of file
+}