diff --git a/src/writers/graphics_320x200x256.rs b/src/writers/graphics_320x200x256.rs
index 6f55831..ba31144 100644
--- a/src/writers/graphics_320x200x256.rs
+++ b/src/writers/graphics_320x200x256.rs
@@ -97,7 +97,7 @@ impl Graphics320x200x256 {
     /// Returns the start of the `FrameBuffer` as `*mut u8` as
     /// well as a lock to the vga driver. This ensures the vga
     /// driver stays locked while the frame buffer is in use.
-    fn get_frame_buffer(&self) -> (SpinlockGuard<Vga>, *mut u8) {
+    fn get_frame_buffer(self) -> (SpinlockGuard<Vga>, *mut u8) {
         let mut vga = VGA.lock();
         let frame_buffer = vga.get_frame_buffer();
         (vga, u32::from(frame_buffer) as *mut u8)
diff --git a/src/writers/graphics_640x480x16.rs b/src/writers/graphics_640x480x16.rs
index 4cc8a45..3af89c7 100644
--- a/src/writers/graphics_640x480x16.rs
+++ b/src/writers/graphics_640x480x16.rs
@@ -106,7 +106,7 @@ impl Graphics640x480x16 {
         Graphics640x480x16
     }
 
-    fn set_write_mode_0(&self, color: Color16) {
+    fn set_write_mode_0(self, color: Color16) {
         let (mut vga, _frame_buffer) = self.get_frame_buffer();
         vga.graphics_controller_registers.write_set_reset(color);
         vga.graphics_controller_registers
@@ -115,7 +115,7 @@ impl Graphics640x480x16 {
             .set_write_mode(WriteMode::Mode0);
     }
 
-    fn set_write_mode_2(&self) {
+    fn set_write_mode_2(self) {
         let (mut vga, _frame_buffer) = self.get_frame_buffer();
         vga.graphics_controller_registers
             .set_write_mode(WriteMode::Mode2);
@@ -127,14 +127,14 @@ impl Graphics640x480x16 {
     /// Returns the start of the `FrameBuffer` as `*mut u8` as
     /// well as a lock to the vga driver. This ensures the vga
     /// driver stays locked while the frame buffer is in use.
-    fn get_frame_buffer(&self) -> (SpinlockGuard<Vga>, *mut u8) {
+    fn get_frame_buffer(self) -> (SpinlockGuard<Vga>, *mut u8) {
         let mut vga = VGA.lock();
         let frame_buffer = vga.get_frame_buffer();
         (vga, u32::from(frame_buffer) as *mut u8)
     }
 
     #[inline]
-    fn _set_pixel(&self, x: usize, y: usize, color: Color16) {
+    fn _set_pixel(self, x: usize, y: usize, color: Color16) {
         let (mut vga, frame_buffer) = self.get_frame_buffer();
         let offset = x / 8 + y * WIDTH_IN_BYTES;
         let pixel_mask = 0x80 >> (x & 0x07);