diff --git a/lib/lua/Makefile.am b/lib/lua/Makefile.am
index 3b272f5..ae67d94 100644
--- a/lib/lua/Makefile.am
+++ b/lib/lua/Makefile.am
@@ -57,6 +57,9 @@
 liblualongnumber_la_LDFLAGS = $(AM_LDFLAGS)
 liblualongnumber_la_LIBADD = $(LUA_LIB) -lm
 
+distdir:
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
 EXTRA_DIST = \
 		coding_standards.md \
 		TBinaryProtocol.lua \