diff --git a/Minecraft.Client/Linux/LinuxStubs.h b/Minecraft.Client/Linux/LinuxStubs.h
index e153d0de8..ffc7be279 100644
--- a/Minecraft.Client/Linux/LinuxStubs.h
+++ b/Minecraft.Client/Linux/LinuxStubs.h
@@ -67,6 +67,12 @@ typedef unsigned char byte;
 typedef short SHORT;
 typedef float FLOAT;
 
+#define ERROR_SUCCESS                    0L
+#define ERROR_IO_PENDING                 997L    // dderror
+#define ERROR_CANCELLED                  1223L
+//#define S_OK                                   ((HRESULT)0x00000000L)
+#define S_FALSE                                ((HRESULT)0x00000001L)
+
 #define PAGE_READWRITE 0x04
 #define MEM_LARGE_PAGES 0x20000000
 #define MAXULONG_PTR ((ULONG_PTR)~0UL)