diff --git a/accel/tcg/tcg-accel-ops-mttcg.c b/accel/tcg/tcg-accel-ops-mttcg.c
index d50239e0e2..ba997f6cfe 100644
--- a/accel/tcg/tcg-accel-ops-mttcg.c
+++ b/accel/tcg/tcg-accel-ops-mttcg.c
@@ -70,6 +70,8 @@ static void *mttcg_cpu_thread_fn(void *arg)
     assert(tcg_enabled());
     g_assert(!icount_enabled());
 
+    tcg_cpu_init_cflags(cpu, current_machine->smp.max_cpus > 1);
+
     rcu_register_thread();
     force_rcu.notifier.notify = mttcg_force_rcu;
     force_rcu.cpu = cpu;
@@ -139,9 +141,6 @@ void mttcg_start_vcpu_thread(CPUState *cpu)
 {
     char thread_name[VCPU_THREAD_NAME_SIZE];
 
-    g_assert(tcg_enabled());
-    tcg_cpu_init_cflags(cpu, current_machine->smp.max_cpus > 1);
-
     cpu->thread = g_new0(QemuThread, 1);
     cpu->halt_cond = g_malloc0(sizeof(QemuCond));
     qemu_cond_init(cpu->halt_cond);
diff --git a/accel/tcg/tcg-accel-ops-rr.c b/accel/tcg/tcg-accel-ops-rr.c
index 1a72149f0e..cc8adc2380 100644
--- a/accel/tcg/tcg-accel-ops-rr.c
+++ b/accel/tcg/tcg-accel-ops-rr.c
@@ -152,7 +152,9 @@ static void *rr_cpu_thread_fn(void *arg)
     Notifier force_rcu;
     CPUState *cpu = arg;
 
-    assert(tcg_enabled());
+    g_assert(tcg_enabled());
+    tcg_cpu_init_cflags(cpu, false);
+
     rcu_register_thread();
     force_rcu.notify = rr_force_rcu;
     rcu_add_force_rcu_notifier(&force_rcu);
@@ -275,9 +277,6 @@ void rr_start_vcpu_thread(CPUState *cpu)
     static QemuCond *single_tcg_halt_cond;
     static QemuThread *single_tcg_cpu_thread;
 
-    g_assert(tcg_enabled());
-    tcg_cpu_init_cflags(cpu, false);
-
     if (!single_tcg_cpu_thread) {
         cpu->thread = g_new0(QemuThread, 1);
         cpu->halt_cond = g_new0(QemuCond, 1);