diff --git a/src/ao_one_e_ints/ao_overlap.irp.f b/src/ao_one_e_ints/ao_overlap.irp.f
index b3b5c206..d7300936 100644
--- a/src/ao_one_e_ints/ao_overlap.irp.f
+++ b/src/ao_one_e_ints/ao_overlap.irp.f
@@ -109,7 +109,7 @@ BEGIN_PROVIDER [ double precision, ao_overlap_abs,(ao_num,ao_num) ]
   double precision :: A_center(3), B_center(3)
   integer :: power_A(3), power_B(3)
   double precision :: lower_exp_val, dx
-  if (periodic) then
+  if (is_periodic) then
     do j=1,ao_num
       do i= 1,ao_num
         ao_overlap_abs(i,j)= cdabs(ao_overlap_complex(i,j))
diff --git a/src/nuclei/EZFIO.cfg b/src/nuclei/EZFIO.cfg
index 0f9b63eb..34c27c46 100644
--- a/src/nuclei/EZFIO.cfg
+++ b/src/nuclei/EZFIO.cfg
@@ -32,7 +32,7 @@ doc: Nuclear repulsion (Computed automaticaly or Read in the |EZFIO|)
 type:double precision
 interface: ezfio
 
-[periodic]
+[is_periodic]
 type: logical
 doc: If true, the calculation uses periodic boundary conditions
 interface: ezfio, provider, ocaml