diff --git a/util/src/main/java/io/grpc/util/MultiChildLoadBalancer.java b/util/src/main/java/io/grpc/util/MultiChildLoadBalancer.java
index 3069012507e..7cd9eb010f3 100644
--- a/util/src/main/java/io/grpc/util/MultiChildLoadBalancer.java
+++ b/util/src/main/java/io/grpc/util/MultiChildLoadBalancer.java
@@ -556,7 +556,7 @@ public Endpoint(EquivalentAddressGroup eag) {
       addrs = new String[eag.getAddresses().size()];
       int i = 0;
       for (SocketAddress address : eag.getAddresses()) {
-        addrs[i] = address.toString();
+        addrs[i++] = address.toString();
       }
       Arrays.sort(addrs);