diff --git a/tests/test_city_merge.py b/tests/test_city_merge.py
index f2b4359c..24bdc800 100644
--- a/tests/test_city_merge.py
+++ b/tests/test_city_merge.py
@@ -104,5 +104,5 @@ class TestCityMerge(TestCase):
       for surface in building.surfaces:
         if surface.global_irradiance:
           second_merged_city_building_total_radiation += surface.global_irradiance[cte.YEAR][0]
-    self.assertEqual(first_merged_city_building_total_radiation, second_merged_city_building_total_radiation)
+    self.assertAlmostEqual(first_merged_city_building_total_radiation, second_merged_city_building_total_radiation, 8)