diff --git a/Resources/Prototypes/Species/arachnid.yml b/Resources/Prototypes/Species/arachnid.yml
index 07a72cda176..84ee5c7e2d0 100644
--- a/Resources/Prototypes/Species/arachnid.yml
+++ b/Resources/Prototypes/Species/arachnid.yml
@@ -10,7 +10,8 @@
   skinColoration: Hues
   maleFirstNames: names_arachnid_first
   femaleFirstNames: names_arachnid_first
-  lastNames: names_arachnid_last
+  maleLastNames: names_arachnid_last # Corvax-LastnameGender
+  femaleLastNames: names_arachnid_last # Corvax-LastnameGender
   sexes:
   - Unsexed