diff --git a/src/nuclei/EZFIO.cfg b/src/nuclei/EZFIO.cfg
index 8d386c5f..b4599b72 100644
--- a/src/nuclei/EZFIO.cfg
+++ b/src/nuclei/EZFIO.cfg
@@ -47,7 +47,7 @@ default: None
 [kpt_num]
 doc: Number of k-points
 type: integer
-interface: ezfio, provider
+interface: ezfio, provider, ocaml
 default: 1
 
 [kpt_pair_num]