diff --git a/cppygen/cppclass.py b/cppygen/cppclass.py
index b4b7a34..5185fde 100644
--- a/cppygen/cppclass.py
+++ b/cppygen/cppclass.py
@@ -16,17 +16,17 @@ class MemberFunctionSignature(TypedDict):
         description: str
         call_guards: list[str]
 
-    def __init__(self, is_template=False, defined_template_classes=[]):
+    def __init__(self, is_template=False):
         self._name: str | None = None
         self._sanitized_name: str | None = None
-        self._base_classes: list[CppClass] = []
+        self._base_classes: list[str] = []
         self._namespace: list[str] = []
         self._members: list[dict[str, str]] = []
         self._member_funcs: list[CppClass.MemberFunctionSignature] = []
         self._module: str | None = None
         self._description = ""
         self._is_template = is_template
-        self._defined_template_classes: list[CppClass] = defined_template_classes
+        # self._defined_template_classes: list[CppClass] = defined_template_classes
         self._template_parameter: list[tuple[str, str | None]] = []
 
     def set_name(self, name: str, namespace: list[str] | None = None):
@@ -53,11 +53,7 @@ def add_member(
             )
 
     def add_base_class(self, name: str):
-        for i in self._defined_template_classes:
-            if i._full_name in name:
-                base_class = copy.deepcopy(i)
-                base_class.set_name(name.split("::")[-1])
-                self._base_classes.append(base_class)
+        self._base_classes.append(name)
 
     def add_member_func(
         self,
@@ -99,13 +95,9 @@ def to_pybind_string(self):
             print("Parse Error Skipping ...")
             return ""
         return (
-            # BaseClass
-            "\n".join([i.to_pybind_string() for i in self._base_classes]) + "\n"
             # Class
-            + f"pybind11::class_<"
-            + ", ".join(
-                [f"::{self._full_name}", *[i._full_name for i in self._base_classes]]
-            )
+            f"pybind11::class_<"
+            + ", ".join([f"::{self._full_name}", *self._base_classes])
             + ">"
             + f'({self._module}, "{self._sanitized_name}")\n'
             "\t\t.def(pybind11::init())"
@@ -140,3 +132,9 @@ def to_pybind_string(self):
 
     def signature(self) -> str:
         return f"{self._full_name}"
+
+    def __eq__(self, obj):
+        if isinstance(obj, CppClass):
+            return self._full_name == obj._full_name
+        else:
+            return False
diff --git a/cppygen/cppygen_parser.py b/cppygen/cppygen_parser.py
index 7d8eee1..4f2c374 100644
--- a/cppygen/cppygen_parser.py
+++ b/cppygen/cppygen_parser.py
@@ -35,6 +35,8 @@ def __init__(
         self._functions: list[Function] = []
         self._submodules: list[Submodule] = []
         self._cpp_classes: list[CppClass] = []
+        self._export_classes: list[CppClass] = []
+        self._cpp_template_classes: list[CppClass] = []
         self._hpp_includes: list[str] = []
         self._namespace = namespace or "cppygen"
         self._verbose = verbose
@@ -113,10 +115,7 @@ def _extract_struct_and_class(
     ):
         def visit(i: Cursor, namespace: list[str], is_template):
             print(i.kind)
-            cpp_class = CppClass(
-                is_template,
-                copy.deepcopy([j for j in self._cpp_classes if j._is_template]),
-            )
+            cpp_class = CppClass(is_template)
             cpp_class.set_name(i.spelling, namespace)
             cpp_class.set_module(module_name)
             cpp_class.set_description(i.brief_comment or "")
@@ -132,6 +131,16 @@ def visit(i: Cursor, namespace: list[str], is_template):
                             + j.spelling
                         )
                     cpp_class.add_base_class(j.spelling)
+                    teplate_declares = copy.deepcopy(
+                        [j for j in self._cpp_classes if j._is_template]
+                    )
+
+                    for k in teplate_declares:
+                        if k._full_name in j.spelling:
+                            base_class = copy.deepcopy(k)
+                            base_class.set_name(j.spelling.split("::")[-1])
+                            if base_class not in self._export_classes:
+                                self._export_classes.append(base_class)
                 if j.kind == CursorKind.STRUCT_DECL or j.kind == CursorKind.CLASS_DECL:  # type: ignore
                     visit(j, [*namespace, i.spelling], False)
                 if j.kind == CursorKind.CLASS_TEMPLATE:  # type: ignore
@@ -181,6 +190,8 @@ def visit(i: Cursor, namespace: list[str], is_template):
                             + j.result_type.spelling
                         )
             self._cpp_classes.append(cpp_class)
+            if not cpp_class._is_template:
+                self._export_classes.append(cpp_class)
 
         i: Cursor
         for i in list(cu.get_children()):
@@ -293,12 +304,7 @@ def to_export_string(self):
             + "\t/* Function Export End */\n\n"
             + "\t/* Structs and Classes Export Start */\n"
             + "\n".join(
-                [
-                    "\t" + i.to_pybind_string()
-                    for i in self._cpp_classes
-                    if not i._is_template
-                ]
-                + [""]
+                ["\t" + i.to_pybind_string() for i in self._export_classes] + [""]
             )
             + "\t/* Structs and Classes Export End */\n\n"
         )
diff --git a/example/header_mode/shell/hoge.hpp b/example/header_mode/shell/hoge.hpp
index 144aefe..e6882ea 100644
--- a/example/header_mode/shell/hoge.hpp
+++ b/example/header_mode/shell/hoge.hpp
@@ -53,7 +53,17 @@ class John : public ::Shell::Person {
   }
 };
 
-template <class foo, class bar = int> struct FooBase {
+/******************************************************************************
+ * Class Inheritence
+ ******************************************************************************/
+
+struct AbstFooBase {
+public:
+  // virtual void hello() = 0;
+  virtual ~AbstFooBase() = default;
+};
+
+template <class foo, class bar = int> struct FooBase : public ::Shell::AbstFooBase {
 public:
   foo th() {
     std::cout << "Foo" << std::endl;