diff --git a/src/main.rs b/src/main.rs
index d448574..da1cd90 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,9 +11,9 @@ use x86_64::instructions::hlt;
 
 mod color;
 mod serial;
-mod vga_buffer;
 mod testable;
 mod utils;
+mod vga_buffer;
 
 #[cfg(test)]
 fn test_runner(tests: &[&dyn Fn()]) {
@@ -30,7 +30,6 @@ fn trivial_assertion() {
     assert_eq!(1, 1);
 }
 
-
 #[cfg(not(test))]
 #[panic_handler]
 fn panic(info: &PanicInfo) -> ! {
diff --git a/src/testable.rs b/src/testable.rs
index 83b6d14..cc49194 100644
--- a/src/testable.rs
+++ b/src/testable.rs
@@ -1,4 +1,4 @@
-use crate::{serial_print,serial_println};
+use crate::{serial_print, serial_println};
 
 pub trait Testable {
     fn run(&self) -> ();
@@ -13,4 +13,4 @@ where
         self();
         serial_println!("[ok]");
     }
-}
\ No newline at end of file
+}
diff --git a/src/utils.rs b/src/utils.rs
index 0569e48..f8451ef 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -17,7 +17,6 @@ pub fn exit_qemu(exit_code: QemuExitCode) {
 }
 
 pub fn print_logo() {
-
     let text = r###"
                               _           _  __
                         _ |_ |_)    _ _|_/ \(_ 
@@ -26,4 +25,4 @@ pub fn print_logo() {
     crate::vga_buffer::change_color(crate::color::Color::BrightRed);
     println!("{}", text);
     crate::vga_buffer::reset_color();
-}
\ No newline at end of file
+}
diff --git a/src/vga_buffer.rs b/src/vga_buffer.rs
index 7434b06..025e123 100644
--- a/src/vga_buffer.rs
+++ b/src/vga_buffer.rs
@@ -100,8 +100,7 @@ impl fmt::Write for Writer {
     }
 }
 
-
-pub fn change_color(color : Color) {
+pub fn change_color(color: Color) {
     WRITER.lock().color_code = ColorCode::new(color, Color::Black);
 }
 pub fn reset_color() {