diff --git a/java/src/org/broadinstitute/sting/utils/MannWhitneyU.java b/java/src/org/broadinstitute/sting/utils/MannWhitneyU.java
index 9d061eb33..d8e42a98f 100755
--- a/java/src/org/broadinstitute/sting/utils/MannWhitneyU.java
+++ b/java/src/org/broadinstitute/sting/utils/MannWhitneyU.java
@@ -367,8 +367,9 @@ public class MannWhitneyU {
                 seenInvalid = true;
             }
 
-            return ! seenInvalid && seen1 && seen2;
         }
+
+            return ! seenInvalid && seen1 && seen2;
     }
 
     /**