diff --git a/tests/solver/Test_staggered_cagmres_unprec.cc b/tests/solver/Test_staggered_cagmres_unprec.cc
index 247c4097..b82ecaeb 100644
--- a/tests/solver/Test_staggered_cagmres_unprec.cc
+++ b/tests/solver/Test_staggered_cagmres_unprec.cc
@@ -59,7 +59,10 @@ int main (int argc, char ** argv)
   }
 
   RealD mass=0.5;
-  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
+  RealD c1=9.0/8.0;
+  RealD c2=-1.0/24.0;
+  RealD u0=1.0;
+  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass,c1,c2,u0);
 
   MdagMLinearOperator<ImprovedStaggeredFermionR,FermionField> HermOp(Ds);
   CommunicationAvoidingGeneralisedMinimalResidual<FermionField> CAGMRES(1.0e-8, 10000, 25);
diff --git a/tests/solver/Test_staggered_fcagmres_prec.cc b/tests/solver/Test_staggered_fcagmres_prec.cc
index 9b5c52d7..7685585b 100644
--- a/tests/solver/Test_staggered_fcagmres_prec.cc
+++ b/tests/solver/Test_staggered_fcagmres_prec.cc
@@ -59,7 +59,10 @@ int main (int argc, char ** argv)
   }
 
   RealD mass=0.5;
-  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
+  RealD c1=9.0/8.0;
+  RealD c2=-1.0/24.0;
+  RealD u0=1.0;
+  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass,c1,c2,u0);
 
   MdagMLinearOperator<ImprovedStaggeredFermionR,FermionField> HermOp(Ds);
 
diff --git a/tests/solver/Test_staggered_fgmres_prec.cc b/tests/solver/Test_staggered_fgmres_prec.cc
index a125af7f..30905e35 100644
--- a/tests/solver/Test_staggered_fgmres_prec.cc
+++ b/tests/solver/Test_staggered_fgmres_prec.cc
@@ -59,7 +59,10 @@ int main (int argc, char ** argv)
   }
 
   RealD mass=0.5;
-  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
+  RealD c1=9.0/8.0;
+  RealD c2=-1.0/24.0;
+  RealD u0=1.0;
+  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass,c1,c2,u0);
 
   MdagMLinearOperator<ImprovedStaggeredFermionR,FermionField> HermOp(Ds);
 
diff --git a/tests/solver/Test_staggered_gmres_unprec.cc b/tests/solver/Test_staggered_gmres_unprec.cc
index 2d8a247d..d65b0b31 100644
--- a/tests/solver/Test_staggered_gmres_unprec.cc
+++ b/tests/solver/Test_staggered_gmres_unprec.cc
@@ -59,7 +59,10 @@ int main (int argc, char ** argv)
   }
 
   RealD mass=0.5;
-  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
+  RealD c1=9.0/8.0;
+  RealD c2=-1.0/24.0;
+  RealD u0=1.0;
+  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass,c1,c2,u0);
 
   MdagMLinearOperator<ImprovedStaggeredFermionR,FermionField> HermOp(Ds);
   GeneralisedMinimalResidual<FermionField> GMRES(1.0e-8, 10000, 25);
diff --git a/tests/solver/Test_staggered_mr_unprec.cc b/tests/solver/Test_staggered_mr_unprec.cc
index 835d1337..ca60edb4 100644
--- a/tests/solver/Test_staggered_mr_unprec.cc
+++ b/tests/solver/Test_staggered_mr_unprec.cc
@@ -59,7 +59,10 @@ int main (int argc, char ** argv)
   }
 
   RealD mass=0.5;
-  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
+  RealD c1=9.0/8.0;
+  RealD c2=-1.0/24.0;
+  RealD u0=1.0;
+  ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass,c1,c2,u0);
 
   MdagMLinearOperator<ImprovedStaggeredFermionR,FermionField> HermOp(Ds);
   MinimalResidual<FermionField> MR(1.0e-8,10000,0.8);