diff --git a/pkg/cluster/connection_pooler.go b/pkg/cluster/connection_pooler.go
index 0f4d231f1..41251629c 100644
--- a/pkg/cluster/connection_pooler.go
+++ b/pkg/cluster/connection_pooler.go
@@ -321,13 +321,13 @@ func (c *Cluster) generateConnectionPoolerPodTemplate(role PostgresRole) (
 	envVars = append(envVars, c.getConnectionPoolerEnvVars()...)
 
 	infraRolesList := make([]string, 0)
-	for infraRoleName := range c.Config.InfrastructureRoles {
+	for infraRoleName := range c.InfrastructureRoles {
 		infraRolesList = append(infraRolesList, infraRoleName)
 	}
 
 	if len(infraRolesList) > 0 {
 		envVars = append(envVars, v1.EnvVar{
-			Name:  "INFRASTRUCTURE_ROLES_LIST",
+			Name:  "INFRASTRUCTURE_ROLES",
 			Value: strings.Join(infraRolesList, ","),
 		})
 	}