diff --git a/src/csf/configuration_CI_sigma_helpers.irp.f b/src/csf/configuration_CI_sigma_helpers.irp.f
index cea7640c..508772b6 100644
--- a/src/csf/configuration_CI_sigma_helpers.irp.f
+++ b/src/csf/configuration_CI_sigma_helpers.irp.f
@@ -342,6 +342,8 @@ END_PROVIDER
   !call debug_spindet(Isomo,1)
   !call debug_spindet(Idomo,1)
 
+  alphasIcfg = 0_bit_kind
+
   ! find out all pq holes possible
   nholes = 0
   ! holes in SOMO