diff --git a/config_rdma.go b/config_rdma.go
index a0bd54f..a5c4ada 100644
--- a/config_rdma.go
+++ b/config_rdma.go
@@ -3,7 +3,7 @@ package cgroups
 // LinuxRdma for Linux cgroup 'rdma' resource management (Linux 4.11)
 type LinuxRdma struct {
 	// Maximum number of HCA handles that can be opened. Default is "no limit".
-	HcaHandles *uint32 `json:"hca_handles,omitempty"`
+	HcaHandles *uint32 `json:"hca_handles,omitzero"`
 	// Maximum number of HCA objects that can be created. Default is "no limit".
-	HcaObjects *uint32 `json:"hca_objects,omitempty"`
+	HcaObjects *uint32 `json:"hca_objects,omitzero"`
 }