1 files changed, 2 insertions, 2 deletions
diff --git a/tit4tat.pl b/tit4tat.pl
index c94c13e..47d8535 100644
--- a/tit4tat.pl
+++ b/tit4tat.pl
@@ -1,6 +1,6 @@
 % Syntax: MODULE(UserDecisionHistry [in], ModuleDecision [out])
 
 % Use opponents last decision
-tit4tat([Last|_],Last).
+tit4tat([Last|_],Last,_,_).
 % Fallback to coorporate if history is empty.
-tit4tat([],c).
+tit4tat([],c,_,_).