diff --git a/include/hw/s390x/cpu-topology.h b/include/hw/s390x/cpu-topology.h
index a11b1baa77..9283c948e3 100644
--- a/include/hw/s390x/cpu-topology.h
+++ b/include/hw/s390x/cpu-topology.h
@@ -57,7 +57,7 @@ static inline void s390_topology_setup_cpu(MachineState *ms,
 static inline void s390_topology_reset(void)
 {
     /* Unreachable, CPU topology not implemented for TCG */
-    assert(false);
+    g_assert_not_reached();
 }
 #endif