diff --git a/src/arch/x86_shared/debug.rs b/src/arch/x86_shared/debug.rs
index 4013e94f0c..dbfdf674e5 100644
--- a/src/arch/x86_shared/debug.rs
+++ b/src/arch/x86_shared/debug.rs
@@ -66,7 +66,7 @@ impl<'a> Writer<'a> {
         #[cfg(feature = "graphical_debug")]
         {
             if let Some(ref mut display) = *self.display {
-                let _ = display.write(buf);
+                display.write(buf);
             }
         }