diff --git a/toxcore/Makefile.inc b/toxcore/Makefile.inc
index 9fd1f94a..9afe7791 100644
--- a/toxcore/Makefile.inc
+++ b/toxcore/Makefile.inc
@@ -1,7 +1,8 @@
 lib_LTLIBRARIES += libtoxcore.la
 
 libtoxcore_la_include_HEADERS = \
-                        ../toxcore/tox.h
+                        ../toxcore/tox.h \
+                        ../toxcore/tox_old.h
 
 libtoxcore_la_includedir = $(includedir)/tox