diff --git a/python/tests/test_freq.py b/python/tests/test_freq.py
index c9a1c4649..c4e8b216e 100644
--- a/python/tests/test_freq.py
+++ b/python/tests/test_freq.py
@@ -16,7 +16,7 @@ def test_Hz():
 
 def test_rounding_exact():
     f = MHz(1.234)
-    assert f.value == round(1.234 * 1_000_000)
+    assert f.value == round(1_234_000)
 
 
 def test_mul():