diff --git a/arch/nt32/psxglue.h b/arch/nt32/psxglue.h
index 2d80a86..b72a8d2 100644
--- a/arch/nt32/psxglue.h
+++ b/arch/nt32/psxglue.h
@@ -5,6 +5,7 @@
 #define __PSXOPT_POSIX		0x1
 #define __PSXOPT_DEBUG		0x2
 #define __PSXOPT_LDSO		0x4
+#define __PSXOPT_VRFS		0x8
 
 typedef int	__ldso_dladdr(const void * addr, void * info);
 typedef int	__ldso_dlinfo(void * dso, int req, void * res);
diff --git a/arch/nt64/psxglue.h b/arch/nt64/psxglue.h
index 2d80a86..b72a8d2 100644
--- a/arch/nt64/psxglue.h
+++ b/arch/nt64/psxglue.h
@@ -5,6 +5,7 @@
 #define __PSXOPT_POSIX		0x1
 #define __PSXOPT_DEBUG		0x2
 #define __PSXOPT_LDSO		0x4
+#define __PSXOPT_VRFS		0x8
 
 typedef int	__ldso_dladdr(const void * addr, void * info);
 typedef int	__ldso_dlinfo(void * dso, int req, void * res);