diff --git a/plugins/core.c b/plugins/core.c
index 8f8bc7219c..b4b783008f 100644
--- a/plugins/core.c
+++ b/plugins/core.c
@@ -119,6 +119,7 @@ static void plugin_vcpu_cb__discon(CPUState *cpu,
     struct qemu_plugin_cb *cb, *next;
     uint64_t to = cpu->cc->get_pc(cpu);
 
+    qemu_plugin_set_cb_flags(cpu, QEMU_PLUGIN_CB_RW_REGS);
     if (cpu->cpu_index < plugin.num_vcpus) {
         /* iterate safely; plugins might uninstall themselves at any time */
         QLIST_FOREACH_SAFE_RCU(cb, &plugin.cb_lists[ev], entry, next) {
@@ -127,6 +128,7 @@ static void plugin_vcpu_cb__discon(CPUState *cpu,
             func(cb->ctx->id, cpu->cpu_index, type, from, to);
         }
     }
+    qemu_plugin_set_cb_flags(cpu, QEMU_PLUGIN_CB_NO_REGS);
 }
 
 /*