Index: uspace/app/tester/float/float1.c
===================================================================
--- uspace/app/tester/float/float1.c	(revision b6636dc773461c14eb97c06b1348bbbf0b6499b1)
+++ uspace/app/tester/float/float1.c	(revision 02082f32cd603472c3d7940abab98d4121cab8a9)
@@ -30,4 +30,5 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <stddef.h>
 #include <atomic.h>
 #include <thread.h>
@@ -88,5 +89,5 @@
 		TPRINTF("Threads left: %" PRIua "\n",
 		    total - atomic_get(&threads_finished));
-		sleep(1);
+		thread_sleep(1);
 	}