diff --git a/pkg/manifest1/balancer.go b/pkg/manifest1/balancer.go
index 3dbc1d9c06..35f941eb5f 100644
--- a/pkg/manifest1/balancer.go
+++ b/pkg/manifest1/balancer.go
@@ -102,7 +102,7 @@ func (mb ManifestBalancer) FirstPort() string {
 
 func (mb ManifestBalancer) Ports() []string {
 	pp := mb.Entry.TCPPorts()
-	sp := make([]string, len(pp))
+	sp := make([]string, 0, len(pp))
 
 	for _, p := range pp {
 		sp = append(sp, strconv.Itoa(p.Balancer))
diff --git a/provider/aws/releases.go b/provider/aws/releases.go
index b2c85bc102..55cb2ea131 100644
--- a/provider/aws/releases.go
+++ b/provider/aws/releases.go
@@ -872,7 +872,7 @@ func (p *Provider) resolveLinks(a *structs.App, m *manifest1.Manifest, r *struct
 		}
 
 		entry.Exports = make(map[string]string)
-		linkableEnvs := make([]string, len(entry.Environment))
+		linkableEnvs := make([]string, 0, len(entry.Environment))
 		for _, env := range entry.Environment {
 			linkableEnvs = append(linkableEnvs, fmt.Sprintf("%s=%s", env.Name, env.Value))
 		}