diff --git a/pyproject.toml b/pyproject.toml
index a40f14b1..398c7e49 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -106,3 +106,6 @@ find = {}
 
 [tool.setuptools_scm]
 local_scheme = "no-local-version"
+
+[tool.setuptools.data-files]
+sdmx = ["sdmx/sources.json"]