diff --git a/tests/test_nanoevents_fcc_spring2021.py b/tests/test_nanoevents_fcc_spring2021.py
index 3191389c9..f6ce197e3 100644
--- a/tests/test_nanoevents_fcc_spring2021.py
+++ b/tests/test_nanoevents_fcc_spring2021.py
@@ -148,7 +148,7 @@ def test_KaonParent_to_PionDaughters_Loop(eager_events):
     names_valid = awkward.all(is_pi_0 | is_pi_plus | is_pi_minus)
     assert names_valid
 
-    # Do the daughters have valid charges (same or opposite)?
+    # Do the daughters have valid charges (-1 or 0)?
     nested_bool = awkward.prod(daughters_of_K_S0.charge, axis=2) <= 0
     charge_valid = awkward.all(awkward.ravel(nested_bool))
     assert charge_valid
diff --git a/tests/test_nanoevents_fcc_winter2023.py b/tests/test_nanoevents_fcc_winter2023.py
index 5b863a37c..58ab4c3df 100644
--- a/tests/test_nanoevents_fcc_winter2023.py
+++ b/tests/test_nanoevents_fcc_winter2023.py
@@ -153,7 +153,7 @@ def test_KaonParent_to_PionDaughters_Loop(eager_events):
     names_valid = awkward.all(is_pi_0 | is_pi_plus | is_pi_minus)
     assert names_valid
 
-    # Do the daughters have valid charges (same or opposite)?
+    # Do the daughters have valid charges (-1 or 0)?
     nested_bool = awkward.prod(daughters_of_K_S0.charge, axis=2) <= 0
     charge_valid = awkward.all(awkward.ravel(nested_bool))
     assert charge_valid