diff --git a/MANIFEST.in b/MANIFEST.in
index 2c8a323a..fae1dd7b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -4,6 +4,7 @@ include src/pysme/share/libsme/*
 
 include src/pysme/datafiles_atmospheres.json
 include src/pysme/datafiles_nlte.json
+include src/pysme/config_default.json
 
 include src/pysme/linelist/VALD3_ref.bib