diff --git a/trex.org b/trex.org
index d090f25..981a759 100644
--- a/trex.org
+++ b/trex.org
@@ -328,7 +328,7 @@ power = [
    cutoff ~e_cut~ is the only input data relevant to plane waves.
 
 ** Data definitions
-   
+
    #+NAME: basis
    | Variable        | Type    | Dimensions          | Description                                                     |
    |-----------------+---------+---------------------+-----------------------------------------------------------------|
@@ -885,7 +885,7 @@ prim_factor =
   whereas in electron repulsion integrals each Cholesky vector is
   expressed in a basis of a one-electron function
   $g_{ik}(\mathbf{r}_1) = \phi_i(\mathbf{r}_1) \phi_k(\mathbf{r}_1)$.
-  
+
   #+NAME: rdm
   | Variable               | Type           | Dimensions                                   | Description                                                           |
   |------------------------+----------------+----------------------------------------------+-----------------------------------------------------------------------|
@@ -940,7 +940,7 @@ prim_factor =
 
   3 Lattice vectors to define a box containing the system, for example
   used in periodic calculations.
-  
+
   #+NAME: cell
   | Variable | Type    | Dimensions | Description           |
   |----------+---------+------------+-----------------------|
@@ -965,11 +965,11 @@ prim_factor =
 
   A single $k$-point per TREXIO file can be stored. The $k$-point is
   defined in this group.
-  
+
   #+NAME: pbc
   | Variable      | Type    | Dimensions | Description             |
   |---------------+---------+------------+-------------------------|
-  | ~is_periodic~ | ~int~   |            | ~1~: true or ~0~: false |
+  | ~periodic~    | ~int~   |            | ~1~: true or ~0~: false |
   | ~k_point~     | ~float~ | ~(3)~      | $k$-point sampling      |
 
   #+CALL: json(data=pbc, title="pbc")