diff --git a/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/KVMStorageProcessor.java b/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/KVMStorageProcessor.java
index 1b11b41f36d..9cd6c5af03d 100644
--- a/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/KVMStorageProcessor.java
+++ b/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/KVMStorageProcessor.java
@@ -1463,7 +1463,7 @@ public class KVMStorageProcessor implements StorageProcessor {
             primaryPool = storagePoolMgr.getStoragePool(primaryStore.getPoolType(), primaryStore.getUuid());
             disksize = volume.getSize();
             PhysicalDiskFormat format;
-            if (volume.getFormat() == null) {
+            if (volume.getFormat() == null || StoragePoolType.RBD.equals(primaryStore.getPoolType())) {
                 format = primaryPool.getDefaultFormat();
             } else {
                 format = PhysicalDiskFormat.valueOf(volume.getFormat().toString().toUpperCase());