diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c
index 10126e3..65b5c09 100644
--- a/arch/i386/mm/pgtable.c
+++ b/arch/i386/mm/pgtable.c
@@ -95,8 +95,11 @@
 		return;
 	}
 	pte = pte_offset_kernel(pmd, vaddr);
-	/* <pfn,flags> stored as-is, to permit clearing entries */
-	set_pte(pte, pfn_pte(pfn, flags));
+	if (pgprot_val(flags))
+		/* <pfn,flags> stored as-is, to permit clearing entries */
+		set_pte(pte, pfn_pte(pfn, flags));
+	else
+		pte_clear(&init_mm, vaddr, pte);
 
 	/*
 	 * It's enough to flush this one mapping.