diff --git a/examples/fof_test/uniformBox.yml b/examples/fof_test/uniformBox.yml
index 690bcf87f296a4e8db5c8db45987579c1bd2c651..b4ee0ebed718f3f8cc776c6446efaa90c56c7278 100644
--- a/examples/fof_test/uniformBox.yml
+++ b/examples/fof_test/uniformBox.yml
@@ -42,4 +42,4 @@ Statistics:
 
 # Parameters related to the initial conditions
 InitialConditions:
-  file_name:  ./uniformDMBox_100.hdf5     # The file to read
+  file_name:  ./uniformDMBox_20.hdf5     # The file to read