diff --git a/setup.py b/setup.py
index 992122d..7879e03 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
 # noinspection SpellCheckingInspection
 setup(
     name='pilk',
-    version='0.2.2',
+    version='0.2.3',
     description='python silk voice library',
     long_description=long_description,
     long_description_content_type='text/markdown',
diff --git a/src/silk/pilk_decode.c b/src/silk/pilk_decode.c
index 9cb1fb8..19701e7 100644
--- a/src/silk/pilk_decode.c
+++ b/src/silk/pilk_decode.c
@@ -21,7 +21,7 @@
 static SKP_int32 rand_seed = 1;
 
 // 声明自定义错误
-PyObject *PilkError;
+extern PyObject *PilkError;
 
 PyObject *
 silk_decode(PyObject *Py_UNUSED(module), PyObject *args, PyObject *keyword_args) {
diff --git a/src/silk/pilk_encode.c b/src/silk/pilk_encode.c
index 8064381..a97f225 100644
--- a/src/silk/pilk_encode.c
+++ b/src/silk/pilk_encode.c
@@ -43,7 +43,7 @@ void swap_endian(
 #endif
 
 // 声明自定义错误
-PyObject *PilkError;
+extern PyObject *PilkError;
 
 PyObject *
 silk_encode(PyObject *Py_UNUSED(module), PyObject *args, PyObject *keyword_args) {