Makefile.am: add forgotten include/sync.h

diff --git a/Makefile.am b/Makefile.am
index 557c65a58fe9e4506c8529c8d549f3a033a78f58..f8ae7a1b2b22416b41714c0a6844b4d96a507052 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -521,6 +521,7 @@ i3_SOURCES = \
        include/shmlog.h \
        include/sighandler.h \
        include/startup.h \
+       include/sync.h \
        include/tree.h \
        include/util.h \
        include/window.h \