diff --git a/README.org b/README.org
index 228b9a2..4c3aa4a 100644
--- a/README.org
+++ b/README.org
@@ -190,7 +190,6 @@ For each throw, the probability of winning is the same.
 def multi_turn_single(k):
     p_win = 1 / k  # Winning probability on any given throw
     p_lose = (k-1) / k   # Losing probability on any given throw
-    bob_wins_prob_sum = 0
     r = p_lose**2
     probability_win = p_win / (1 - r)
     return probability_win
diff --git a/pydiceprob.py b/pydiceprob.py
index e6369cd..710a764 100644
--- a/pydiceprob.py
+++ b/pydiceprob.py
@@ -74,7 +74,6 @@ def one_turn_single(k):
 def multi_turn_single(k):
     p_win = 1 / k  # Winning probability on any given throw
     p_lose = (k-1) / k   # Losing probability on any given throw
-    bob_wins_prob_sum = 0
     r = p_lose**2
     probability_win = p_win / (1 - r)
     return probability_win