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-rw-r--r--mistrust_tit4tat.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/mistrust_tit4tat.pl b/mistrust_tit4tat.pl
index 5b95b9e..3c150c5 100644
--- a/mistrust_tit4tat.pl
+++ b/mistrust_tit4tat.pl
@@ -1,6 +1,6 @@
% Syntax: MODULE(UserDecisionHistry [in], ModuleDecision [out])
% Use opponents last decision
-mistrust_tit4tat([Last|_],Last).
+mistrust_tit4tat([Last|_],Last,_,_).
% Fallback to defect if history is empty.
mistrust_tit4tat([],d,_,_).