Index: uspace/lib/cpp/include/__bits/thread/threading.hpp
===================================================================
--- uspace/lib/cpp/include/__bits/thread/threading.hpp	(revision a853075af6495cc4ad987493246270c01a25115c)
+++ uspace/lib/cpp/include/__bits/thread/threading.hpp	(revision 0b5d37a43feb1f5c5a8f89a05635375620405caa)
@@ -158,5 +158,5 @@
             static void sleep(time_unit time)
             {
-                hel::async_usleep(time);
+                hel::fibril_usleep(time);
             }
         };