1 files changed, 1 insertions, 1 deletions
diff --git a/src/mini_uart.zig b/src/mini_uart.zig
index 265268d..6f15031 100644
--- a/src/mini_uart.zig
+++ b/src/mini_uart.zig
@@ -41,7 +41,7 @@ fn baudRegVal(baud: comptime_int) comptime_int {
 }
 
 fn writeByte(b: u8) void {
-    while ((mmio.read(LSR) & 0x10) != 0) {}
+    while ((mmio.read(LSR) & 0x20) == 0) {}
     mmio.write(IO, b);
 }