diff --git a/ctypes_generation/definitions/structures/winstruct.txt b/ctypes_generation/definitions/structures/winstruct.txt
index 91e26a2..80ada30 100644
--- a/ctypes_generation/definitions/structures/winstruct.txt
+++ b/ctypes_generation/definitions/structures/winstruct.txt
@@ -4,11 +4,18 @@ typedef struct _LIST_ENTRY {
 } LIST_ENTRY, *PLIST_ENTRY, *RESTRICTED_POINTER PRLIST_ENTRY;
 
 
+/* Definition of WinXP : Still same base in win11 with some extra field */
 typedef struct _PEB_LDR_DATA {
-  BYTE       Reserved1[8];
-  PVOID      Reserved2[3];
-  LIST_ENTRY InMemoryOrderModuleList;
-} PEB_LDR_DATA, *PPEB_LDR_DATA;
+    ULONG               Length;
+    BYTE                Initialized;
+    PVOID               SsHandle;
+    _LIST_ENTRY         InLoadOrderModuleList;
+    _LIST_ENTRY         InMemoryOrderModuleList;
+    _LIST_ENTRY         InInitializationOrderModuleList;
+    PVOID               EntryInProgress;
+    // BYTE                ShutdownInProgress; // New field
+    // PVOID               ShutdownThreadId;   // New field
+}PEB_LDR_DATA, *PPEB_LDR_DATA;
 
 
 typedef struct _LSA_UNICODE_STRING {
diff --git a/docs/source/winstructs_generated.rst b/docs/source/winstructs_generated.rst
index 7fc4e1d..dabdef8 100644
--- a/docs/source/winstructs_generated.rst
+++ b/docs/source/winstructs_generated.rst
@@ -10521,19 +10521,39 @@ _PEB_LDR_DATA
 
 .. class:: _PEB_LDR_DATA
 
-    .. attribute:: Reserved1
+    .. attribute:: Length
 
-        :class:`BYTE` ``[8]``
+        :class:`ULONG`
 
 
-    .. attribute:: Reserved2
+    .. attribute:: Initialized
 
-        :class:`PVOID` ``[3]``
+        :class:`BYTE`
+
+
+    .. attribute:: SsHandle
+
+        :class:`PVOID`
+
+
+    .. attribute:: InLoadOrderModuleList
+
+        :class:`_LIST_ENTRY`
 
 
     .. attribute:: InMemoryOrderModuleList
 
-        :class:`LIST_ENTRY`
+        :class:`_LIST_ENTRY`
+
+
+    .. attribute:: InInitializationOrderModuleList
+
+        :class:`_LIST_ENTRY`
+
+
+    .. attribute:: EntryInProgress
+
+        :class:`PVOID`
 
 _LSA_UNICODE_STRING
 '''''''''''''''''''
diff --git a/windows/generated_def/winstructs.py b/windows/generated_def/winstructs.py
index a411aa8..ef09ba6 100644
--- a/windows/generated_def/winstructs.py
+++ b/windows/generated_def/winstructs.py
@@ -5438,9 +5438,13 @@ _LIST_ENTRY._fields_ = [
 
 class _PEB_LDR_DATA(Structure):
     _fields_ = [
-        ("Reserved1", BYTE * (8)),
-        ("Reserved2", PVOID * (3)),
-        ("InMemoryOrderModuleList", LIST_ENTRY),
+        ("Length", ULONG),
+        ("Initialized", BYTE),
+        ("SsHandle", PVOID),
+        ("InLoadOrderModuleList", _LIST_ENTRY),
+        ("InMemoryOrderModuleList", _LIST_ENTRY),
+        ("InInitializationOrderModuleList", _LIST_ENTRY),
+        ("EntryInProgress", PVOID),
     ]
 PEB_LDR_DATA = _PEB_LDR_DATA
 PPEB_LDR_DATA = POINTER(_PEB_LDR_DATA)