diff --git a/reactos/drivers/storage/ide/pciidex/pdo.c b/reactos/drivers/storage/ide/pciidex/pdo.c
index c580077a78c..532cc22f601 100644
--- a/reactos/drivers/storage/ide/pciidex/pdo.c
+++ b/reactos/drivers/storage/ide/pciidex/pdo.c
@@ -441,7 +441,7 @@ PciIdeXPdoPnpDispatch(
 			DeviceCapabilities->DockDevice = FALSE;
 			DeviceCapabilities->UniqueID = FALSE;
 			DeviceCapabilities->SilentInstall = FALSE;
-			DeviceCapabilities->RawDeviceOK = TRUE;
+			DeviceCapabilities->RawDeviceOK = FALSE;
 			DeviceCapabilities->SurpriseRemovalOK = TRUE;
 			DeviceCapabilities->HardwareDisabled = FALSE; /* FIXME */
 			//DeviceCapabilities->NoDisplayInUI = FALSE; /* FIXME */