diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h
index 5cb7cc636..ad9c2e0c6 100644
--- a/winsup/cygwin/ntdll.h
+++ b/winsup/cygwin/ntdll.h
@@ -1465,12 +1465,6 @@ extern "C"
   NTSTATUS NTAPI NtMapViewOfSection (HANDLE, HANDLE, PVOID *, ULONG_PTR, SIZE_T,
 				     PLARGE_INTEGER, PSIZE_T, SECTION_INHERIT,
 				     ULONG, ULONG);
-
-/* For the extended memory API. */
-#if __MINGW64_VERSION_MAJOR < 8
-#error "Version >= 8 of the w32api headers is required"
-#endif
-
   NTSTATUS NTAPI NtMapViewOfSectionEx (HANDLE, HANDLE, PVOID *, PLARGE_INTEGER,
 				       PSIZE_T, ULONG, ULONG,
 				       PMEM_EXTENDED_PARAMETER, ULONG);
diff --git a/winsup/cygwin/winlean.h b/winsup/cygwin/winlean.h
index de7305e26..6f9c1df24 100644
--- a/winsup/cygwin/winlean.h
+++ b/winsup/cygwin/winlean.h
@@ -99,11 +99,6 @@ details. */
 extern "C" {
 #endif
 
-/* For the extended memory API. */
-#if __MINGW64_VERSION_MAJOR < 8
-#error "Version >= 8 of the w32api headers is required"
-#endif
-
 /* IsWow64Process2 should be declared in <w32api/wow64apiset.h> but
    isn't yet. */
 BOOL WINAPI IsWow64Process2(HANDLE, USHORT *, USHORT *);