diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 7926114d5c..a42743a3e0 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -3136,7 +3136,7 @@ void helper_book3s_msgclrp(CPUPPCState *env, target_ulong rb)
 void helper_book3s_msgsndp(CPUPPCState *env, target_ulong rb)
 {
     CPUState *cs = env_cpu(env);
-    PowerPCCPU *cpu = POWERPC_CPU(cs);
+    PowerPCCPU *cpu = env_archcpu(env);
     CPUState *ccs;
     uint32_t nr_threads = cs->nr_threads;
     int ttir = rb & PPC_BITMASK(57, 63);