diff --git a/src/main/java/uk/co/real_logic/agrona/collections/IntHashSet.java b/src/main/java/uk/co/real_logic/agrona/collections/IntHashSet.java
index <HASH>..<HASH> 100644
--- a/src/main/java/uk/co/real_logic/agrona/collections/IntHashSet.java
+++ b/src/main/java/uk/co/real_logic/agrona/collections/IntHashSet.java
@@ -537,7 +537,7 @@ public final class IntHashSet implements Set<Integer>
 
         for (final int value : values)
         {
-            total += (31 * value);
+            total += value;
         }
 
         return total;
[Java] revert multiply hash code by a prime.