diff --git a/libcontainer/integration/execin_test.go b/libcontainer/integration/execin_test.go
index 583faa29f..d6b251150 100644
--- a/libcontainer/integration/execin_test.go
+++ b/libcontainer/integration/execin_test.go
@@ -66,7 +66,7 @@ func TestExecIn(t *testing.T) {
 		t.Fatalf("unexpected running process, output %q", out)
 	}
 	if strings.Contains(out, "\r") {
-		t.Fatalf("unexpected carriage-return in output")
+		t.Fatalf("unexpected carriage-return in output %q", out)
 	}
 }