diff --git a/bindings/python/unicorn/unicorn_py3/unicorn.py b/bindings/python/unicorn/unicorn_py3/unicorn.py
index 9b5f8e0cb5..e2d844cda4 100644
--- a/bindings/python/unicorn/unicorn_py3/unicorn.py
+++ b/bindings/python/unicorn/unicorn_py3/unicorn.py
@@ -1048,7 +1048,7 @@ def hook_add(self, htype: int, callback: Callable, user_data: Any = None, begin:
 
         def __hook_intr():
             @uccallback(self, HOOK_INTR_CFUNC)
-            def __hook_intr_cb(uc: Uc, intno: int, key: int):
+            def __hook_intr_cb(uc: Uc, intno: int, key: int) -> None:
                 callback(uc, intno, user_data)
 
             return (__hook_intr_cb,)
@@ -1061,7 +1061,7 @@ def __hook_insn():
 
         def __hook_code():
             @uccallback(self, HOOK_CODE_CFUNC)
-            def __hook_code_cb(uc: Uc, address: int, size: int, key: int):
+            def __hook_code_cb(uc: Uc, address: int, size: int, key: int) -> None:
                 callback(uc, address, size, user_data)
 
             return (__hook_code_cb,)
@@ -1089,14 +1089,14 @@ def __hook_insn_invalid_cb(uc: Uc, key: int) -> bool:
 
         def __hook_edge_gen():
             @uccallback(self, HOOK_EDGE_GEN_CFUNC)
-            def __hook_edge_gen_cb(uc: Uc, cur: ctypes._Pointer[uc_tb], prev: ctypes._Pointer[uc_tb], key: int):
+            def __hook_edge_gen_cb(uc: Uc, cur: ctypes._Pointer[uc_tb], prev: ctypes._Pointer[uc_tb], key: int) -> None:
                 callback(uc, cur.contents, prev.contents, user_data)
 
             return (__hook_edge_gen_cb,)
 
         def __hook_tcg_opcode():
             @uccallback(self, HOOK_TCG_OPCODE_CFUNC)
-            def __hook_tcg_op_cb(uc: Uc, address: int, arg1: int, arg2: int, size: int, key: int):
+            def __hook_tcg_op_cb(uc: Uc, address: int, arg1: int, arg2: int, size: int, key: int) -> None:
                 callback(uc, address, arg1, arg2, size, user_data)
 
             opcode = ctypes.c_uint64(aux1)
@@ -1106,8 +1106,8 @@ def __hook_tcg_op_cb(uc: Uc, address: int, arg1: int, arg2: int, size: int, key:
 
         def __hook_tlb_fill():
             @uccallback(self, HOOK_TLB_FILL_CFUNC)
-            def __hook_tlb_fill_cb(uc: Uc, vaddr: int, access: int, entry: ctypes._Pointer[uc_tlb_entry], key: int):
-                callback(uc, vaddr, access, entry.contents, user_data)
+            def __hook_tlb_fill_cb(uc: Uc, vaddr: int, access: int, entry: ctypes._Pointer[uc_tlb_entry], key: int) -> bool:
+                return callback(uc, vaddr, access, entry.contents, user_data)
 
             return (__hook_tlb_fill_cb,)