diff --git a/include/winnt.h b/include/winnt.h
index e1de2f29ecd..8c91ebc79b5 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -2060,6 +2060,7 @@ typedef void (CALLBACK *PTERMINATION_HANDLER)(BOOLEAN,DWORD64);
 #endif /* __aarch64__ */
 
 NTSYSAPI void    NTAPI RtlRaiseException(struct _EXCEPTION_RECORD*);
+NTSYSAPI void    CDECL RtlRestoreContext(CONTEXT*,struct _EXCEPTION_RECORD*);
 NTSYSAPI void    NTAPI RtlUnwind(void*,void*,struct _EXCEPTION_RECORD*,void*);
 
 #if defined(__x86_64__) || defined(__arm__) || defined(__aarch64__)