diff --git a/.codespellrc b/.codespellrc
index 1c84e47..1db3f2b 100644
--- a/.codespellrc
+++ b/.codespellrc
@@ -5,4 +5,5 @@ ignore-regex = "image/png": ".*|^ *".*data:\S+;base64.*
 # nd - people just like it
 
 # makin - surname (Joseph G. Makin, cited in 000129/MathisLab CEBRA notebook)
-ignore-words-list = nd,trough,mater,mebrains,makin
+# aci - variable name for `anatomical_coordinates_image` in 001712/IBL-Widefield
+ignore-words-list = nd,trough,mater,mebrains,makin,aci