diff --git a/java/src/org/broadinstitute/sting/utils/WilcoxonRankSum.java b/java/src/org/broadinstitute/sting/utils/WilcoxonRankSum.java
index ca70b0671..4a4fb22d7 100755
--- a/java/src/org/broadinstitute/sting/utils/WilcoxonRankSum.java
+++ b/java/src/org/broadinstitute/sting/utils/WilcoxonRankSum.java
@@ -11,8 +11,8 @@ public class WilcoxonRankSum {
 
     // Probabilities relate to the distribution of WA, the rank sum for group A when
     // H0 : A = B is true. The tabulated value for the lower tail is the largest
-    // value of wA for which pr(WA ˛ wA) ˛ prob . The tabulated value for the
-    // upper tail is the smallest value of wfor which pr(Wł w) ˛ prob .
+    // value of wA for which pr(WA <= wA) <= prob . The tabulated value for the
+    // upper tail is the smallest value of wfor which pr(W >= w) <= prob .
 
     // I think this data is wrong -- we should really do the computation outselves and remember the results
     static final int data[][] = {