diff --git a/linux-user/nios2/signal.c b/linux-user/nios2/signal.c
index 80e3d42fc9..517cd39270 100644
--- a/linux-user/nios2/signal.c
+++ b/linux-user/nios2/signal.c
@@ -205,7 +205,7 @@ long do_rt_sigreturn(CPUNios2State *env)
     }
 
     target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
-    do_sigprocmask(SIG_SETMASK, &set, NULL);
+    set_sigmask(&set);
 
     if (rt_restore_ucontext(env, &frame->uc, &rval)) {
         goto badframe;
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 1229fecf5c..f813b4f18e 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -258,7 +258,6 @@ int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
     return 0;
 }
 
-#if !defined(TARGET_NIOS2)
 /* Just set the guest's signal mask to the specified value; the
  * caller is assumed to have called block_signals() already.
  */
@@ -268,7 +267,6 @@ void set_sigmask(const sigset_t *set)
 
     ts->signal_mask = *set;
 }
-#endif
 
 /* sigaltstack management */