diff --git a/kitty/data-types.h b/kitty/data-types.h
index f871f33ab..70e28b610 100644
--- a/kitty/data-types.h
+++ b/kitty/data-types.h
@@ -134,8 +134,8 @@ typedef struct ImageAnchorPosition {
 #define START_ALLOW_CASE_RANGE IGNORE_PEDANTIC_WARNINGS
 #define END_ALLOW_CASE_RANGE END_IGNORE_PEDANTIC_WARNINGS
 #define BIT_MASK(__TYPE__, __ONE_COUNT__) \
-    ((__TYPE__) (-((__ONE_COUNT__) != 0))) \
-    & (((__TYPE__) -1) >> ((sizeof(__TYPE__) * CHAR_BIT) - (__ONE_COUNT__)))
+    (((__TYPE__) (-((__ONE_COUNT__) != 0))) \
+    & (((__TYPE__) -1) >> ((sizeof(__TYPE__) * CHAR_BIT) - (__ONE_COUNT__))))
 #define ADD_TYPE(which) \
     if (PyType_Ready(&which##_Type) < 0) return false; \
     if (PyModule_AddObject(module, #which, (PyObject *)&which##_Type) != 0) return false; \