diff --git a/src/GF/qsGF2.f90 b/src/GF/qsGF2.f90
index 350a81c..bf187b0 100644
--- a/src/GF/qsGF2.f90
+++ b/src/GF/qsGF2.f90
@@ -220,7 +220,7 @@ subroutine qsGF2(maxSCF,thresh,max_diis,BSE,TDA,dBSE,dTDA,evDyn,singlet,triplet,
 
     ! Correlation energy
 
-    call MP2(nBas,nC,nO,nV,nR,ERI_MO,ENuc,EqsGF2,eGF2,Ec)
+    call MP2(regularize,nBas,nC,nO,nV,nR,ERI_MO,ENuc,EqsGF2,eGF2,Ec)
 
     ! Total energy