diff --git a/plugins/Perturbation/var_pt2_ratio_provider.irp.f b/plugins/Perturbation/var_pt2_ratio_provider.irp.f
new file mode 100644
index 00000000..43bcbf3e
--- /dev/null
+++ b/plugins/Perturbation/var_pt2_ratio_provider.irp.f
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+BEGIN_PROVIDER [ double precision, var_pt2_ratio  ]
+  implicit none
+  BEGIN_DOC
+  ! The selection process stops when the energy ratio variational/(variational+PT2)
+  ! is equal to var_pt2_ratio
+  END_DOC
+  
+  var_pt2_ratio = correlation_energy_ratio_max 
+END_PROVIDER
+