diff --git a/saltproc/openmc_depcode.py b/saltproc/openmc_depcode.py
index e5f7c6d7c..9f04a159f 100644
--- a/saltproc/openmc_depcode.py
+++ b/saltproc/openmc_depcode.py
@@ -89,7 +89,7 @@ def __init__(self,
         if exec_path == "openmc_deplete.py":
             exec_path = (Path(__file__).parents[0] / exec_path).resolve()
         else:
-            exec_path == (Path(template_input_file_path['settings'].parents[0]) / exec_path).resolve()
+            exec_path = (Path(template_input_file_path['settings'].parents[0]) / exec_path).resolve()
 
         self.depletion_settings = depletion_settings
         self.chain_file_path = chain_file_path
diff --git a/saltproc/results.py b/saltproc/results.py
index 0bb2cf91b..42634e678 100644
--- a/saltproc/results.py
+++ b/saltproc/results.py
@@ -148,8 +148,8 @@ def _collect_material_comp(self, material):
                    len(material.after_reproc.comp))
         material_comp = np.empty(arr_dim)
         for nuc in nucs:
-            nuc_comp_br = material.before_reproc.comp[:, nuc_map[nuc]]
-            nuc_comp_ar = material.after_reproc.comp[:, nuc_map[nuc]]
+            nuc_comp_br = material.before_reproc.comp[:, nuc_map[nuc]].tolist()
+            nuc_comp_ar = material.after_reproc.comp[:, nuc_map[nuc]].tolist()
             nuc_comp_0 = nuc_comp_br.pop(0)
             nuc_comp = []
             for c1, c2 in zip(nuc_comp_br, nuc_comp_ar):
diff --git a/saltproc/serpent_depcode.py b/saltproc/serpent_depcode.py
index bd02e3b7a..a3ac6d5a4 100644
--- a/saltproc/serpent_depcode.py
+++ b/saltproc/serpent_depcode.py
@@ -257,6 +257,8 @@ def _zam_to_nuclide_code(self, Z, a, m):
                       nuc_code = 95642
                    else:
                       nuc_code = 95242
+        else:
+            nuc_code += a
         return nuc_code