diff --git a/data/ai/lua/extCAexample.lua b/data/ai/lua/extCAexample.lua
index 3a88d825ec04..43f16ea82592 100644
--- a/data/ai/lua/extCAexample.lua
+++ b/data/ai/lua/extCAexample.lua
@@ -2,13 +2,13 @@
 
 example_ca = {}
 
-function example_ca:evaluation(ai)
+function example_ca:evaluation()
     wesnoth.message("External CA evaluation says hi.")
 
     return 10000
 end
 
-function example_ca:execution(ai)
+function example_ca:execution()
     wesnoth.message("External CA execution attacks.")
 
     -- Note that there is no check whether these attacks are possible.
diff --git a/data/ai/scenarios/scenario-lua_ai.cfg b/data/ai/scenarios/scenario-lua_ai.cfg
index 72dfe3635ce7..78fce81ba7b2 100644
--- a/data/ai/scenarios/scenario-lua_ai.cfg
+++ b/data/ai/scenarios/scenario-lua_ai.cfg
@@ -105,8 +105,6 @@ Gs^Fp       , Gs^Fp       , Wwf         , Wwf         , Mm          , Rd
                     name=external_CA
                     id=external_CA
                     location="ai/lua/extCAexample.lua"
-                    eval_parms=""
-                    exec_parms=""
                 [/candidate_action]
             [/stage]
         [/ai]