diff --git a/palace/drivers/electrostaticsolver.cpp b/palace/drivers/electrostaticsolver.cpp
index 9f2ab100e..fd5a0dfce 100644
--- a/palace/drivers/electrostaticsolver.cpp
+++ b/palace/drivers/electrostaticsolver.cpp
@@ -135,7 +135,7 @@ void ElectrostaticSolver::PostprocessTerminals(
   for (int i = 0; i < C.Height(); i++)
   {
     // Diagonal: Cᵢᵢ = 2 Uₑ(Vᵢ) / Vᵢ² = (Vᵢᵀ K Vᵢ) / Vᵢ²
-    auto &V_gf = postop.GetV().Real();
+    auto &V_gf = postop.GetVGridFunction().Real();
     auto &D_gf = postop.GetDomainPostOp().D;
     V_gf.SetFromTrueDofs(V[i]);
     postop.GetDomainPostOp().M_elec->Mult(V_gf, D_gf);
diff --git a/palace/drivers/magnetostaticsolver.cpp b/palace/drivers/magnetostaticsolver.cpp
index a4b025ddd..3e540e8e9 100644
--- a/palace/drivers/magnetostaticsolver.cpp
+++ b/palace/drivers/magnetostaticsolver.cpp
@@ -142,7 +142,7 @@ void MagnetostaticSolver::PostprocessTerminals(PostOperator &postop,
   for (int i = 0; i < M.Height(); i++)
   {
     // Diagonal: Mᵢᵢ = 2 Uₘ(Aᵢ) / Iᵢ² = (Aᵢᵀ K Aᵢ) / Iᵢ²
-    auto &A_gf = postop.GetA().Real();
+    auto &A_gf = postop.GetAGridFunction().Real();
     auto &H_gf = postop.GetDomainPostOp().H;
     A_gf.SetFromTrueDofs(A[i]);
     postop.GetDomainPostOp().M_mag->Mult(A_gf, H_gf);
diff --git a/palace/models/postoperator.hpp b/palace/models/postoperator.hpp
index ed665d18a..18cdb04d8 100644
--- a/palace/models/postoperator.hpp
+++ b/palace/models/postoperator.hpp
@@ -97,25 +97,25 @@ class PostOperator
   void SetAGridFunction(const Vector &a, bool exchange_face_nbr_data = true);
 
   // Access grid functions for field solutions.
-  auto &GetE()
+  auto &GetEGridFunction()
   {
     MFEM_ASSERT(E.has_value(),
                 "Missing GridFunction object when accessing from PostOperator!");
     return *E;
   }
-  auto &GetB()
+  auto &GetBGridFunction()
   {
     MFEM_ASSERT(B.has_value(),
                 "Missing GridFunction object when accessing from PostOperator!");
     return *B;
   }
-  auto &GetV()
+  auto &GetVGridFunction()
   {
     MFEM_ASSERT(V.has_value(),
                 "Missing GridFunction object when accessing from PostOperator!");
     return *V;
   }
-  auto &GetA()
+  auto &GetAGridFunction()
   {
     MFEM_ASSERT(A.has_value(),
                 "Missing GridFunction object when accessing from PostOperator!");