diff --git a/vars/raspbian-11.yml b/vars/raspbian-11.yml
index 037f0a51c..d1d1d8672 100644
--- a/vars/raspbian-11.yml
+++ b/vars/raspbian-11.yml
@@ -1,6 +1,7 @@
+# Every is_<OS> var is initially set to 'False' at the bottom of
+# /opt/iiab/iiab/vars/default_vars.yml -- these 'True' lines override that:
 is_debuntu: True
-is_debian: True
-is_ubuntu: False
+is_debian: True    # Opposite of is_ubuntu for now
 is_debian_11: True
 is_raspbian: True
 is_raspbian_11: True