diff --git a/reactos/include/psdk/winioctl.h b/reactos/include/psdk/winioctl.h
index ba6d469cba7..c9a5336900a 100644
--- a/reactos/include/psdk/winioctl.h
+++ b/reactos/include/psdk/winioctl.h
@@ -159,6 +159,9 @@ extern "C" {
 #define PARTITION_PREP                0x41
 #define PARTITION_LDM                 0x42
 #define PARTITION_UNIX                0x63
+#define PARTITION_LINUX_SWAP          0x82
+#define PARTITION_LINUX               0x83
+#define PARTITION_LINUX_LVM           0x8E
 #define PARTITION_NTFT                128
 #define VALID_NTFT                    0xC0
 #define METHOD_BUFFERED               0