diff --git a/target-i386/helper.c b/target-i386/helper.c
index af6bba2..40fe407 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -947,7 +947,7 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
     }
 
     page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
-    paddr = (pte & TARGET_PAGE_MASK) + page_offset;
+    paddr = (pte & TARGET_PAGE_MASK & ~PG_NX_MASK) + page_offset;
     return paddr;
 }