diff --git a/lignumis/data.lua b/lignumis/data.lua
index 4456e68..9e79de0 100644
--- a/lignumis/data.lua
+++ b/lignumis/data.lua
@@ -6,7 +6,7 @@ Lignumis = {
     science_pack_blacklist = {
         "wood-science-pack", "steam-science-pack", -- Lignumis
         "nanite-science-pack", "quantum-science-pack", "ring-science-pack", -- Metal and Stars
-        "cerys-science-pack" -- Cerys
+        "cerys-science-pack", "cerysian-science-pack" -- Cerys
     },
 
     -- These technologies are skipped even if they are matches according to above lists