diff --git a/src/state_point.cpp b/src/state_point.cpp
index d26e536102..455ddac492 100644
--- a/src/state_point.cpp
+++ b/src/state_point.cpp
@@ -607,7 +607,8 @@ write_source_bank(hid_t group_id, bool surf_src_bank)
 
   // Set vectors for source bank and starting bank index of each process
   std::vector<int64_t>* bank_index = &simulation::work_index;
-  std::vector<Particle::Bank> src_bank = simulation::source_bank;
+  std::vector<Particle::Bank>* src_bank = &simulation::source_bank;
+  std::vector<Particle::Bank> surf_src_bank_vector;
 
   // Reset dataspace sizes and vectors for surface source bank
   if (surf_src_bank) {
@@ -616,9 +617,11 @@ write_source_bank(hid_t group_id, bool surf_src_bank)
 
     bank_index = &simulation::surf_src_index;
 
-    src_bank.assign(simulation::surf_src_bank.data(),
-                    simulation::surf_src_bank.data()
-                    + simulation::surf_src_bank.size());
+    // Copy data in a SharedArray into a vector.
+    surf_src_bank_vector.resize(count_size);
+    surf_src_bank_vector.assign(simulation::surf_src_bank.data(),
+                                simulation::surf_src_bank.data() + count_size);
+    src_bank = &surf_src_bank_vector;
   }
 
 #ifdef PHDF5
@@ -641,7 +644,7 @@ write_source_bank(hid_t group_id, bool surf_src_bank)
   H5Pset_dxpl_mpio(plist, H5FD_MPIO_COLLECTIVE);
 
   // Write data to file in parallel
-  H5Dwrite(dset, banktype, memspace, dspace, plist, src_bank.data());
+  H5Dwrite(dset, banktype, memspace, dspace, plist, (*src_bank).data());
 
   // Free resources
   H5Sclose(dspace);
@@ -660,8 +663,8 @@ write_source_bank(hid_t group_id, bool surf_src_bank)
 
     // Save source bank sites since the array is overwritten below
 #ifdef OPENMC_MPI
-    std::vector<Particle::Bank> temp_source {src_bank.begin(),
-      src_bank.begin() + count_size};
+    std::vector<Particle::Bank> temp_source {(*src_bank).begin(),
+      (*src_bank).begin() + count_size};
 #endif
 
     for (int i = 0; i < mpi::n_procs; ++i) {
@@ -672,7 +675,7 @@ write_source_bank(hid_t group_id, bool surf_src_bank)
 #ifdef OPENMC_MPI
       // Receive source sites from other processes
       if (i > 0)
-        MPI_Recv(src_bank.data(), count[0], mpi::bank, i, i,
+        MPI_Recv((*src_bank).data(), count[0], mpi::bank, i, i,
                  mpi::intracomm, MPI_STATUS_IGNORE);
 #endif
 
@@ -682,7 +685,7 @@ write_source_bank(hid_t group_id, bool surf_src_bank)
       H5Sselect_hyperslab(dspace, H5S_SELECT_SET, start, nullptr, count, nullptr);
 
       // Write data to hyperslab
-      H5Dwrite(dset, banktype, memspace, dspace, H5P_DEFAULT, src_bank.data());
+      H5Dwrite(dset, banktype, memspace, dspace, H5P_DEFAULT, (*src_bank).data());
 
       H5Sclose(memspace);
       H5Sclose(dspace);
@@ -693,11 +696,11 @@ write_source_bank(hid_t group_id, bool surf_src_bank)
 
 #ifdef OPENMC_MPI
     // Restore state of source bank
-    std::copy(temp_source.begin(), temp_source.end(), src_bank.begin());
+    std::copy(temp_source.begin(), temp_source.end(), (*src_bank).begin());
 #endif
   } else {
 #ifdef OPENMC_MPI
-    MPI_Send(src_bank.data(), count_size, mpi::bank,
+    MPI_Send((*src_bank).data(), count_size, mpi::bank,
       0, mpi::rank, mpi::intracomm);
 #endif
   }