diff --git a/bindings/python/sample_ctl.py b/bindings/python/sample_ctl.py
index 202a2094..1578a010 100755
--- a/bindings/python/sample_ctl.py
+++ b/bindings/python/sample_ctl.py
@@ -57,7 +57,7 @@ def test_uc_ctl_tb_cache():
 
     # Now we clear cache for all TBs.
     for i in range(8):
-        uc.ctl_remove_cache(addr + i * 512)
+        uc.ctl_remove_cache(addr + i * 512, addr + i * 512 + 1)
     
     evicted = time_emulation(uc, addr, addr + len(code))
 
@@ -66,7 +66,7 @@ def test_uc_ctl_tb_cache():
 def trace_new_edge(uc, cur, prev, data):
     print(f">>> Getting a new edge from {hex(prev.pc + prev.size - 1)} to {hex(cur.pc)}")
 
-def trace_tcg_sub(uc, address, arg1, arg2, data):
+def trace_tcg_sub(uc, address, arg1, arg2, size, data):
     print(f">>> Get a tcg sub opcode at {hex(address)} with args: {arg1} and {arg2}")
 
 def test_uc_ctl_exits():
diff --git a/bindings/python/unicorn/unicorn.py b/bindings/python/unicorn/unicorn.py
index e893d6fe..bd266935 100644
--- a/bindings/python/unicorn/unicorn.py
+++ b/bindings/python/unicorn/unicorn.py
@@ -210,7 +210,7 @@ UC_HOOK_EDGE_GEN_CB = ctypes.CFUNCTYPE(
     None, uc_engine, ctypes.POINTER(uc_tb), ctypes.POINTER(uc_tb), ctypes.c_void_p
 )
 UC_HOOK_TCG_OPCODE_CB = ctypes.CFUNCTYPE(
-    None, uc_engine, ctypes.c_uint64, ctypes.c_uint64, ctypes.c_uint64, ctypes.c_void_p
+    None, uc_engine, ctypes.c_uint64, ctypes.c_uint64, ctypes.c_uint64, ctypes.c_uint32, ctypes.c_void_p
 )
 
 # access to error code via @errno of UcError
@@ -647,9 +647,9 @@ class Uc(object):
         return result.value
 
     @_catch_hook_exception
-    def _hook_tcg_op_cb(self, handle, address, arg1, arg2, user_data):
+    def _hook_tcg_op_cb(self, handle, address, arg1, arg2, size, user_data):
         (cb, data) = self._callbacks[user_data]
-        cb(self, address, arg1, arg2, user_data)
+        cb(self, address, arg1, arg2, size, user_data)
 
     @_catch_hook_exception
     def _hook_edge_gen_cb(self, handle, cur, prev, user_data):