diff --git a/library/std/src/sys/xous/thread_parking.rs b/library/std/src/sys/xous/thread_parking.rs
index ec1b6d8c79968..872a4f112d551 100644
--- a/library/std/src/sys/xous/thread_parking.rs
+++ b/library/std/src/sys/xous/thread_parking.rs
@@ -83,7 +83,8 @@ impl Parker {
             TicktimerScalar::NotifyCondition(self.index(), 1).into(),
         )
         .expect("failed to send NotifyCondition command")[0]
-            == 1
+            != 1
+            && self.state.load(Acquire) != EMPTY
         {
             // The target thread hasn't yet hit the `WaitForCondition` call.
             // Yield to let the target thread run some more.