diff --git a/linux-user/signal.c b/linux-user/signal.c
index 99adfc29e4..a67db04e1a 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -5851,14 +5851,13 @@ long do_rt_sigreturn(CPUM68KState *env)
 {
     struct target_rt_sigframe *frame;
     abi_ulong frame_addr = env->aregs[7] - 4;
-    target_sigset_t target_set;
     sigset_t set;
 
     trace_user_do_rt_sigreturn(env, frame_addr);
     if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1))
         goto badframe;
 
-    target_to_host_sigset_internal(&set, &target_set);
+    target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
     set_sigmask(&set);
 
     /* restore registers */