diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 3f6db4b0d1..f986548c2d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8523,6 +8523,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
       {
           TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
           ts->tp_value = arg1;
+          ret = 0;
           break;
       }
 #else