+diff --git a/kernel/conftest.sh b/kernel/conftest.sh
+index 8f807a1..af29636 100755
+--- a/kernel/conftest.sh
++++ b/kernel/conftest.sh
+@@ -143,6 +143,7 @@ test_headers() {
+ FILES="$FILES video/nv_internal.h"
+ FILES="$FILES asm/book3s/64/hash-64k.h"
+ FILES="$FILES asm/set_memory.h"
++ FILES="$FILES asm/pgtable.h"
+ FILES="$FILES asm/prom.h"
+ FILES="$FILES asm/powernv.h"
+ FILES="$FILES asm/tlbflush.h"
+@@ -466,6 +467,9 @@ compile_test() {
+ # It does not exist on all architectures.
+ #
+ CODE="
++ #if defined(NV_ASM_PGTABLE_H_PRESENT)
++ #include <asm/pgtable.h>
++ #endif
+ #if defined(NV_ASM_SET_MEMORY_H_PRESENT)
+ #include <asm/set_memory.h>
+ #else