diff --git a/tests/tester.rs b/tests/tester.rs
index 16e56931..9885ff46 100644
--- a/tests/tester.rs
+++ b/tests/tester.rs
@@ -44,6 +44,7 @@ impl BatTester {
             .args(&[
                 "sample.rs",
                 "--decorations=always",
+                "--terminal-width=80",
                 &format!("--style={}", style),
             ]).output()
             .expect("bat failed");