diff --git a/hdf.yaml b/hdf.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..b3f4ee1b9137fed12305e384ca90a5c5b2b6e4ea
--- /dev/null
+++ b/hdf.yaml
@@ -0,0 +1,4 @@
+version_control: github
+src_repo:  HDFGroup/hdf4
+tag_prefix: "hdf-|hdf"
+separator: "_"