diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index b7caf60..032a3d7 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -457,7 +457,7 @@ megaraid_probe_one(struct pci_dev *pdev,
 
 	// Setup the default DMA mask. This would be changed later on
 	// depending on hardware capabilities
-	if (pci_set_dma_mask(adapter->pdev, DMA_32BIT_MASK) != 0) {
+	if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK) != 0) {
 
 		con_log(CL_ANN, (KERN_WARNING
 			"megaraid: pci_set_dma_mask failed:%d\n", __LINE__));