Index: uspace/lib/libc/Makefile
===================================================================
--- uspace/lib/libc/Makefile	(revision d9c8c81f21850cb9e08890ce3919e1d8e253e810)
+++ uspace/lib/libc/Makefile	(revision 95ba2b84acffdac11b75bbad97e71f5b2be3c218)
@@ -52,4 +52,5 @@
 	generic/string.c \
 	generic/fibril.c \
+	generic/fibril_sync.c \
 	generic/pcb.c \
 	generic/smc.c \