diff --git a/core/src/main/java/org/elasticsearch/action/AliasesRequest.java b/core/src/main/java/org/elasticsearch/action/AliasesRequest.java
index 6e45af0cf84..a4ff57ebd20 100644
--- a/core/src/main/java/org/elasticsearch/action/AliasesRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/AliasesRequest.java
@@ -35,7 +35,7 @@ public interface AliasesRequest extends IndicesRequest.Replaceable {
     /**
      * Sets the array of aliases that the action relates to
      */
-    AliasesRequest aliases(String[] aliases);
+    AliasesRequest aliases(String... aliases);
 
     /**
      * Returns true if wildcards expressions among aliases should be resolved, false otherwise
diff --git a/core/src/main/java/org/elasticsearch/action/IndicesRequest.java b/core/src/main/java/org/elasticsearch/action/IndicesRequest.java
index 9200f99c6f7..4c62a7e849b 100644
--- a/core/src/main/java/org/elasticsearch/action/IndicesRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/IndicesRequest.java
@@ -41,9 +41,9 @@ public interface IndicesRequest {
     IndicesOptions indicesOptions();
 
     static interface Replaceable extends IndicesRequest {
-        /*
-         * Sets the array of indices that the action relates to
+        /**
+         * Sets the indices that the action relates to.
          */
-        IndicesRequest indices(String[] indices);
+        IndicesRequest indices(String... indices);
     }
 }
diff --git a/core/src/main/java/org/elasticsearch/action/admin/cluster/health/ClusterHealthRequest.java b/core/src/main/java/org/elasticsearch/action/admin/cluster/health/ClusterHealthRequest.java
index d603886d924..59b426d8c31 100644
--- a/core/src/main/java/org/elasticsearch/action/admin/cluster/health/ClusterHealthRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/admin/cluster/health/ClusterHealthRequest.java
@@ -61,7 +61,7 @@ public class ClusterHealthRequest extends MasterNodeReadRequest<ClusterHealthReq
     }
 
     @Override
-    public ClusterHealthRequest indices(String[] indices) {
+    public ClusterHealthRequest indices(String... indices) {
         this.indices = indices;
         return this;
     }
diff --git a/core/src/main/java/org/elasticsearch/action/admin/indices/exists/indices/IndicesExistsRequest.java b/core/src/main/java/org/elasticsearch/action/admin/indices/exists/indices/IndicesExistsRequest.java
index bc0112f1505..c448c936766 100644
--- a/core/src/main/java/org/elasticsearch/action/admin/indices/exists/indices/IndicesExistsRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/admin/indices/exists/indices/IndicesExistsRequest.java
@@ -51,7 +51,7 @@ public class IndicesExistsRequest extends MasterNodeReadRequest<IndicesExistsReq
     }
 
     @Override
-    public IndicesExistsRequest indices(String[] indices) {
+    public IndicesExistsRequest indices(String... indices) {
         this.indices = indices;
         return this;
     }
diff --git a/core/src/main/java/org/elasticsearch/action/admin/indices/exists/types/TypesExistsRequest.java b/core/src/main/java/org/elasticsearch/action/admin/indices/exists/types/TypesExistsRequest.java
index 85f46a9f4f8..9aba8ec44ed 100644
--- a/core/src/main/java/org/elasticsearch/action/admin/indices/exists/types/TypesExistsRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/admin/indices/exists/types/TypesExistsRequest.java
@@ -52,7 +52,7 @@ public class TypesExistsRequest extends MasterNodeReadRequest<TypesExistsRequest
     }
 
     @Override
-    public TypesExistsRequest indices(String[] indices) {
+    public TypesExistsRequest indices(String... indices) {
         this.indices = indices;
         return this;
     }
diff --git a/core/src/main/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequest.java b/core/src/main/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequest.java
index 7cfcbd733a8..3a1aadd7650 100644
--- a/core/src/main/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequest.java
@@ -20,6 +20,7 @@
 package org.elasticsearch.action.admin.indices.mapping.put;
 
 import com.carrotsearch.hppc.ObjectHashSet;
+
 import org.elasticsearch.ElasticsearchGenerationException;
 import org.elasticsearch.action.ActionRequestValidationException;
 import org.elasticsearch.action.IndicesRequest;
@@ -96,7 +97,7 @@ public class PutMappingRequest extends AcknowledgedRequest<PutMappingRequest> im
      * Sets the indices this put mapping operation will execute on.
      */
     @Override
-    public PutMappingRequest indices(String[] indices) {
+    public PutMappingRequest indices(String... indices) {
         this.indices = indices;
         return this;
     }
diff --git a/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/put/PutWarmerRequest.java b/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/put/PutWarmerRequest.java
index dbf136dec12..77f8f426876 100644
--- a/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/put/PutWarmerRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/put/PutWarmerRequest.java
@@ -111,7 +111,7 @@ public class PutWarmerRequest extends AcknowledgedRequest<PutWarmerRequest> impl
     }
 
     @Override
-    public IndicesRequest indices(String[] indices) {
+    public IndicesRequest indices(String... indices) {
         if (searchRequest == null) {
             throw new IllegalStateException("unable to set indices, search request is null");
         }
diff --git a/plugins/delete-by-query/src/main/java/org/elasticsearch/action/deletebyquery/DeleteByQueryRequest.java b/plugins/delete-by-query/src/main/java/org/elasticsearch/action/deletebyquery/DeleteByQueryRequest.java
index fa83fb4fd3d..7103cf1a4e0 100644
--- a/plugins/delete-by-query/src/main/java/org/elasticsearch/action/deletebyquery/DeleteByQueryRequest.java
+++ b/plugins/delete-by-query/src/main/java/org/elasticsearch/action/deletebyquery/DeleteByQueryRequest.java
@@ -105,7 +105,7 @@ public class DeleteByQueryRequest extends ActionRequest<DeleteByQueryRequest> im
     }
 
     @Override
-    public DeleteByQueryRequest indices(String[] indices) {
+    public DeleteByQueryRequest indices(String... indices) {
         this.indices = indices;
         return this;
     }