diff --git a/Objects/stringlib/find.h b/Objects/stringlib/find.h
index 5b17c7f..9e0d299 100644
--- a/Objects/stringlib/find.h
+++ b/Objects/stringlib/find.h
@@ -90,7 +90,7 @@
     return stringlib_rfind(str + start, end - start, sub, sub_len, start);
 }
 
-#ifdef STRINGLIB_STR
+#if defined(STRINGLIB_STR) && !defined(FROM_BYTEARRAY)
 
 Py_LOCAL_INLINE(int)
 stringlib_contains_obj(PyObject* str, PyObject* sub)