diff --git a/include/fiction/io/write_sqd_layout.hpp b/include/fiction/io/write_sqd_layout.hpp
index 0e66161e2..e2b9a71a8 100644
--- a/include/fiction/io/write_sqd_layout.hpp
+++ b/include/fiction/io/write_sqd_layout.hpp
@@ -20,6 +20,7 @@
 #include <fstream>
 #include <ostream>
 #include <sstream>
+#include <string>
 #include <string_view>
 #include <unordered_map>
 #include <vector>
@@ -254,12 +255,37 @@ class write_sqd_layout_impl
                 if constexpr (has_sidb_technology_v<Lyt>)
                 {
                     const auto type = this->lyt.get_cell_type(c);
-                    const auto type_str =
-                        type == sidb_technology::cell_type::NORMAL ? "" :
-                        type == sidb_technology::cell_type::INPUT  ? fmt::format(siqad::DOT_TYPE, "input") :
-                        type == sidb_technology::cell_type::OUTPUT ? fmt::format(siqad::DOT_TYPE, "output") :
-                        type == sidb_technology::cell_type::LOGIC  ? fmt::format(siqad::DOT_TYPE, "logic") :
-                                                                     "";
+
+                    std::string type_str;
+
+                    switch (type)
+                    {
+                        case sidb_technology::cell_type::NORMAL:
+                        {
+                            type_str = "";
+                            break;
+                        }
+                        case sidb_technology::cell_type::INPUT:
+                        {
+                            type_str = fmt::format(siqad::DOT_TYPE, "input");
+                            break;
+                        }
+                        case sidb_technology::cell_type::OUTPUT:
+                        {
+                            type_str = fmt::format(siqad::DOT_TYPE, "output");
+                            break;
+                        }
+                        case sidb_technology::cell_type::LOGIC:
+                        {
+                            type_str = fmt::format(siqad::DOT_TYPE, "logic");
+                            break;
+                        }
+                        default:
+                        {
+                            type_str = "";
+                            break;
+                        }
+                    }
 
                     if constexpr (has_siqad_coord_v<Lyt>)
                     {