Index: libcfa/src/concurrency/channel.hfa
===================================================================
--- libcfa/src/concurrency/channel.hfa	(revision 02c5880ef5e449eff27c777e52cfa666f96c142e)
+++ libcfa/src/concurrency/channel.hfa	(revision 0803ead505943e8de1a6dc22d0d9f0b3298b53ae)
@@ -28,4 +28,5 @@
     unlock( lock );
     park();
+    __atomic_thread_fence( __ATOMIC_SEQ_CST );
     return sn.extra == 0p;
 }