diff --git a/manifests/storage/all.pp b/manifests/storage/all.pp
index 866d33f5..d7565bf9 100644
--- a/manifests/storage/all.pp
+++ b/manifests/storage/all.pp
@@ -109,6 +109,10 @@
 #   (optional) Number of account server workers.
 #   Defaults to $::os_workers.
 #
+# [*object_server_mb_per_sync*]
+#   (optional) Number of MB allocated for the cache.
+#   Defaults to 512, which is the swift default value.
+#
 # [*splice*]
 #   (optional) Use splice for zero-copy object GETs. This requires Linux Kernel
 #   version 3.0 or greater.
@@ -141,6 +145,7 @@ class swift::storage::all(
   $account_server_workers         = $::os_workers,
   $container_server_workers       = $::os_workers,
   $object_server_workers          = $::os_workers,
+  $object_server_mb_per_sync      = 512,
   $splice                         = false,
 ) {
 
@@ -201,14 +206,15 @@ class swift::storage::all(
   }
 
   swift::storage::server { $object_port:
-    type             => 'object',
-    config_file_path => 'object-server.conf',
-    pipeline         => $object_pipeline,
-    log_facility     => $log_facility,
-    log_requests     => $log_requests,
-    incoming_chmod   => $incoming_chmod,
-    outgoing_chmod   => $outgoing_chmod,
-    workers          => $object_server_workers,
-    splice           => $splice,
+    type                      => 'object',
+    config_file_path          => 'object-server.conf',
+    pipeline                  => $object_pipeline,
+    log_facility              => $log_facility,
+    log_requests              => $log_requests,
+    incoming_chmod            => $incoming_chmod,
+    outgoing_chmod            => $outgoing_chmod,
+    workers                   => $object_server_workers,
+    splice                    => $splice,
+    object_server_mb_per_sync => $object_server_mb_per_sync,
   }
 }
diff --git a/manifests/storage/server.pp b/manifests/storage/server.pp
index 87331604..4b91449c 100644
--- a/manifests/storage/server.pp
+++ b/manifests/storage/server.pp
@@ -164,6 +164,10 @@
 #   version 3.0 or greater.
 #   Defaults to false.
 #
+# [*object_server_mb_per_sync*]
+#   (optional) Number of MB allocated for the cache.
+#   Defaults to 512, which is the swift default value.
+#
 define swift::storage::server(
   $type,
   $storage_local_net_ip,
@@ -202,6 +206,7 @@ define swift::storage::server(
   $disk_chunk_size                = 65536,
   $auditor_disk_chunk_size        = undef,
   $splice                         = false,
+  $object_server_mb_per_sync      = 512,
 ) {
 
   include swift::deps
diff --git a/templates/object-server.conf.erb b/templates/object-server.conf.erb
index 90126bb2..3b819d0a 100644
--- a/templates/object-server.conf.erb
+++ b/templates/object-server.conf.erb
@@ -38,6 +38,7 @@ set log_level = <%= @log_level %>
 set log_requests = <%= @log_requests %>
 set log_address = <%= @log_address %>
 splice = <%= @splice %>
+mb_per_sync = <%= @object_server_mb_per_sync %>
 
 [object-replicator]
 concurrency = <%= @replicator_concurrency %>