diff --git a/include/exec/poison.h b/include/exec/poison.h
index f4283f693a..d6d4832854 100644
--- a/include/exec/poison.h
+++ b/include/exec/poison.h
@@ -48,6 +48,7 @@
 #pragma GCC poison TARGET_PAGE_MASK
 #pragma GCC poison TARGET_PAGE_BITS
 #pragma GCC poison TARGET_PAGE_ALIGN
+#pragma GCC poison TARGET_PHYS_ADDR_SPACE_BITS
 
 #pragma GCC poison CPU_INTERRUPT_HARD
 #pragma GCC poison CPU_INTERRUPT_EXITTB