diff --git a/vmm/src/lib.rs b/vmm/src/lib.rs
index d0a538b6d..a1c3c31aa 100644
--- a/vmm/src/lib.rs
+++ b/vmm/src/lib.rs
@@ -2401,7 +2401,8 @@ mod unit_tests {
             },
             console: ConsoleConfig {
                 file: None,
-                mode: ConsoleOutputMode::Tty,
+                // Caution: Don't use `Tty` to not mess with users terminal
+                mode: ConsoleOutputMode::Off,
                 iommu: false,
                 socket: None,
             },