diff --git a/MANIFEST.in b/MANIFEST.in
index 6798e0165..ce196964e 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,2 +1,2 @@
-include LICENSE core/*.cpp core/*.h python/*.c stdlib/std.jsonnet Makefile
+include LICENSE include/*.h core/*.cpp core/*.h python/*.c stdlib/std.jsonnet Makefile
 #recursive-include test_suite examples gc_stress benchmarks editors