diff --git a/src/net/writev_test.go b/src/net/writev_test.go
index 385cc12503..175bc38400 100644
--- a/src/net/writev_test.go
+++ b/src/net/writev_test.go
@@ -207,6 +207,6 @@ func TestWritevError(t *testing.T) {
 		buffers[i] = buf
 	}
 	if _, err := buffers.WriteTo(c1); err == nil {
-		t.Fatalf("Buffers.WriteTo(closed conn) succeeded, want error", err)
+		t.Fatal("Buffers.WriteTo(closed conn) succeeded, want error")
 	}
 }