diff --git a/test/test_grid_decimation.py b/test/test_grid_decimation.py
index 947a43a..ea21a79 100755
--- a/test/test_grid_decimation.py
+++ b/test/test_grid_decimation.py
@@ -54,7 +54,7 @@ def run_filter(type):
         if pt["grid"] > 0:
             nb_pts_grid += 1
 
-    assert nb_pts_grid == 3234
+    assert nb_pts_grid == 3231
     assert nb_pts_grid <= nb_dalle
 
     data = []