diff --git a/src/rime_api.h b/src/rime_api.h
index 14f3dbcaf..94de3091a 100644
--- a/src/rime_api.h
+++ b/src/rime_api.h
@@ -8,13 +8,13 @@
 #ifndef RIME_API_H_
 #define RIME_API_H_
 
+#include <stddef.h>
+#include <stdint.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <stddef.h>
-#include <stdint.h>
-
 #if defined(_WIN32)
 #if defined(RIME_EXPORTS)
 /* DLL export */