diff --git a/rEFIt_UEFI/Platform/Posix/stddef.h b/rEFIt_UEFI/Platform/Posix/stddef.h
index 29ac5223a..525299888 100644
--- a/rEFIt_UEFI/Platform/Posix/stddef.h
+++ b/rEFIt_UEFI/Platform/Posix/stddef.h
@@ -10,7 +10,7 @@
 #else
 
 #define	SIZE_T_MAX MAX_UINTN
-typedef UINTN2 size_t;
+typedef UINTN size_t;
 
 #endif