diff --git a/src/google/protobuf/compiler/objectivec/text_format_decode_data.h b/src/google/protobuf/compiler/objectivec/text_format_decode_data.h
index ab5b493abf..bc565c7e70 100644
--- a/src/google/protobuf/compiler/objectivec/text_format_decode_data.h
+++ b/src/google/protobuf/compiler/objectivec/text_format_decode_data.h
@@ -31,6 +31,7 @@
 #ifndef GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_TEXT_FORMAT_DECODE_DATA_H__
 #define GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_TEXT_FORMAT_DECODE_DATA_H__
 
+#include <cstdint>
 #include <string>
 #include <utility>
 #include <vector>