diff --git a/src/PROPERTIES/properties_energy.irp.f b/src/PROPERTIES/properties_energy.irp.f
index 7f42053..12ebb73 100644
--- a/src/PROPERTIES/properties_energy.irp.f
+++ b/src/PROPERTIES/properties_energy.irp.f
@@ -278,15 +278,6 @@ BEGIN_PROVIDER [ double precision, E_loc_zv ]
 
 END_PROVIDER
 
-BEGIN_PROVIDER [ double precision, E_loc_zv_diag ]
- implicit none
- BEGIN_DOC
- ! Zero-variance parameter on E_loc
- END_DOC
-  E_loc_zv_diag = E_trial
-
-END_PROVIDER
-