diff --git a/src/add-ons/kernel/busses/scsi/ahci/ahci_port.cpp b/src/add-ons/kernel/busses/scsi/ahci/ahci_port.cpp
index c08cd25f2c..4f68cfba16 100644
--- a/src/add-ons/kernel/busses/scsi/ahci/ahci_port.cpp
+++ b/src/add-ons/kernel/busses/scsi/ahci/ahci_port.cpp
@@ -714,7 +714,7 @@ AHCIPort::ScsiExecuteRequest(scsi_ccb *request)
 		case SCSI_OP_READ_12:
 		case SCSI_OP_WRITE_12:
 		{
-			scsi_cmd_rw_10 *cmd = (scsi_cmd_rw_10 *)request->cdb;
+			scsi_cmd_rw_12 *cmd = (scsi_cmd_rw_12 *)request->cdb;
 			uint32 position = B_BENDIAN_TO_HOST_INT32(cmd->lba);
 			size_t length = B_BENDIAN_TO_HOST_INT32(cmd->length);
 			bool isWrite = request->cdb[0] == SCSI_OP_WRITE_12;