diff --git a/src/green/EZFIO.cfg b/src/green/EZFIO.cfg
index 859a3eb9..0ad57888 100644
--- a/src/green/EZFIO.cfg
+++ b/src/green/EZFIO.cfg
@@ -73,14 +73,14 @@ size: (green.n_lanczos_iter,green.n_green_vec)
 [un_lanczos]
 interface: ezfio
 doc: saved lanczos u vector
-type: complex*16
-size: (determinants.n_det,green.n_green_vec)
+type: double precision
+size: (2,determinants.n_det,green.n_green_vec)
 
 [vn_lanczos]
 interface: ezfio
 doc: saved lanczos v vector
-type: complex*16
-size: (determinants.n_det,green.n_green_vec)
+type: double precision
+size: (2,determinants.n_det,green.n_green_vec)
 
 [lanczos_eigvals]
 interface: ezfio