diff --git a/sherpa-onnx/csrc/text-utils.cc b/sherpa-onnx/csrc/text-utils.cc
index a1843ce54..c4b34772f 100644
--- a/sherpa-onnx/csrc/text-utils.cc
+++ b/sherpa-onnx/csrc/text-utils.cc
@@ -9,6 +9,7 @@
 
 #include <algorithm>
 #include <cctype>
+#include <cstdint>
 #include <limits>
 #include <sstream>
 #include <string>