diff --git a/daemon/cluster/networks.go b/daemon/cluster/networks.go
index 4f91c4c136..f478e650cf 100644
--- a/daemon/cluster/networks.go
+++ b/daemon/cluster/networks.go
@@ -37,7 +37,7 @@ func (c *Cluster) getNetworks(filters *swarmapi.ListNetworksRequest_Filters) ([]
 		return nil, err
 	}
 
-	var networks []apitypes.NetworkResource
+	networks := make([]apitypes.NetworkResource, 0, len(r.Networks))
 
 	for _, network := range r.Networks {
 		networks = append(networks, convert.BasicNetworkFromGRPC(*network))
diff --git a/daemon/cluster/nodes.go b/daemon/cluster/nodes.go
index ebd47e9b61..839c8f78e5 100644
--- a/daemon/cluster/nodes.go
+++ b/daemon/cluster/nodes.go
@@ -34,7 +34,7 @@ func (c *Cluster) GetNodes(options apitypes.NodeListOptions) ([]types.Node, erro
 		return nil, err
 	}
 
-	nodes := []types.Node{}
+	nodes := make([]types.Node, 0, len(r.Nodes))
 
 	for _, node := range r.Nodes {
 		nodes = append(nodes, convert.NodeFromGRPC(*node))
diff --git a/daemon/cluster/secrets.go b/daemon/cluster/secrets.go
index af034a6e8c..3947286cba 100644
--- a/daemon/cluster/secrets.go
+++ b/daemon/cluster/secrets.go
@@ -48,7 +48,7 @@ func (c *Cluster) GetSecrets(options apitypes.SecretListOptions) ([]types.Secret
 		return nil, err
 	}
 
-	secrets := []types.Secret{}
+	secrets := make([]types.Secret, 0, len(r.Secrets))
 
 	for _, secret := range r.Secrets {
 		secrets = append(secrets, convert.SecretFromGRPC(secret))
diff --git a/daemon/cluster/services.go b/daemon/cluster/services.go
index 5afc08cf91..c17bd6d09a 100644
--- a/daemon/cluster/services.go
+++ b/daemon/cluster/services.go
@@ -67,7 +67,7 @@ func (c *Cluster) GetServices(options apitypes.ServiceListOptions) ([]types.Serv
 		return nil, err
 	}
 
-	services := []types.Service{}
+	services := make([]types.Service, 0, len(r.Services))
 
 	for _, service := range r.Services {
 		if options.Filters.Include("mode") {
diff --git a/daemon/cluster/tasks.go b/daemon/cluster/tasks.go
index 6a6c59ffe5..47cd5563b9 100644
--- a/daemon/cluster/tasks.go
+++ b/daemon/cluster/tasks.go
@@ -60,7 +60,7 @@ func (c *Cluster) GetTasks(options apitypes.TaskListOptions) ([]types.Task, erro
 		return nil, err
 	}
 
-	tasks := []types.Task{}
+	tasks := make([]types.Task, 0, len(r.Tasks))
 
 	for _, task := range r.Tasks {
 		if task.Spec.GetContainer() != nil {