diff --git a/core/fxcrt/fx_extension.h b/core/fxcrt/fx_extension.h
index ff96de0f7..0195bd06f 100644
--- a/core/fxcrt/fx_extension.h
+++ b/core/fxcrt/fx_extension.h
@@ -13,7 +13,7 @@
 
 #include "core/fxcrt/fx_string.h"
 #include "third_party/base/span.h"
-#include "third_party/icu/source/common/unicode/uchar.h"
+#include <unicode/uchar.h>
 
 #define FX_INVALID_OFFSET static_cast<uint32_t>(-1)