diff --git a/src/lib.rs b/src/lib.rs
index 6dc545bfa7..f6d53476f9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -155,11 +155,20 @@ pub unsafe extern "C" fn kstart(
     thunk16: extern "C" fn(),
 ) -> ! {
     {
+        // Make sure we are in mode 3 (80x25 text mode)
         let mut data = ThunkData::new();
         data.ax = 0x03;
         data.with(thunk10);
     }
 
+    {
+        // Disable cursor
+        let mut data = ThunkData::new();
+        data.ax = 0x0100;
+        data.cx = 0x3F00;
+        data.with(thunk10);
+    }
+
     let mut vga = Vga::new(0xb8000 as *mut VgaTextBlock, 80, 25);
 
     for i in 0..vga.blocks.len() {
@@ -172,6 +181,7 @@ pub unsafe extern "C" fn kstart(
     writeln!(vga, "Arrow keys and space select mode, enter to continue");
 
     loop {
+        // Read keypress
         let mut data = ThunkData::new();
         data.with(thunk16);
         writeln!(