diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 9765a509d2..b9a8c1d1f4 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -946,7 +946,7 @@ void cpu_check_watchpoint(CPUState *cpu, vaddr addr, vaddr len,
                 cpu_loop_exit(cpu);
             } else {
                 /* Force execution of one insn next time.  */
-                cpu->cflags_next_tb = 1 | curr_cflags(cpu);
+                cpu->cflags_next_tb = 1 | CF_LAST_IO | curr_cflags(cpu);
                 mmap_unlock();
                 cpu_loop_exit_noexc(cpu);
             }