diff --git a/include/pocketpy/common.h b/include/pocketpy/common.h
index 2f8c4691..8d771bf0 100644
--- a/include/pocketpy/common.h
+++ b/include/pocketpy/common.h
@@ -48,7 +48,7 @@ struct GIL {
     explicit GIL() { _mutex.lock(); }
     ~GIL() { _mutex.unlock(); }
 };
-#define PK_GLOBAL_SCOPE_LOCK() GIL _lock();
+#define PK_GLOBAL_SCOPE_LOCK() GIL _lock;
 
 #else
 #define PK_THREAD_LOCAL
@@ -154,4 +154,4 @@ inline bool is_both_float(PyObject* a, PyObject* b) noexcept {
 inline PyObject* const PY_NULL = (PyObject*)0b000011;		// tagged null
 inline PyObject* const PY_OP_CALL = (PyObject*)0b100011;
 inline PyObject* const PY_OP_YIELD = (PyObject*)0b110011;
-} // namespace pkpy
\ No newline at end of file
+} // namespace pkpy