diff --git a/server/src/main/java/org/elasticsearch/cluster/routing/allocation/decider/ConcurrentRebalanceAllocationDecider.java b/server/src/main/java/org/elasticsearch/cluster/routing/allocation/decider/ConcurrentRebalanceAllocationDecider.java
index 05351109c8657..15456ec3e1133 100644
--- a/server/src/main/java/org/elasticsearch/cluster/routing/allocation/decider/ConcurrentRebalanceAllocationDecider.java
+++ b/server/src/main/java/org/elasticsearch/cluster/routing/allocation/decider/ConcurrentRebalanceAllocationDecider.java
@@ -61,6 +61,11 @@ private void setClusterConcurrentRebalance(int concurrentRebalance) {
 
     @Override
     public Decision canRebalance(ShardRouting shardRouting, RoutingAllocation allocation) {
+        return canRebalance(allocation);
+    }
+    
+    @Override
+    public Decision canRebalance(RoutingAllocation allocation) {
         if (clusterConcurrentRebalance == -1) {
             return allocation.decision(Decision.YES, NAME, "unlimited concurrent rebalances are allowed");
         }