diff --git a/sherpa-onnx/csrc/parse-options.h b/sherpa-onnx/csrc/parse-options.h
index a46f794f8..17ead6fe7 100644
--- a/sherpa-onnx/csrc/parse-options.h
+++ b/sherpa-onnx/csrc/parse-options.h
@@ -7,6 +7,7 @@
 #ifndef SHERPA_ONNX_CSRC_PARSE_OPTIONS_H_
 #define SHERPA_ONNX_CSRC_PARSE_OPTIONS_H_
 
+#include <cstdint>
 #include <sstream>
 #include <string>
 #include <unordered_map>