1 files changed, 6 insertions, 4 deletions
diff --git a/src/google/protobuf/wire_format_lite_inl.h b/src/google/protobuf/wire_format_lite_inl.h
index 991c3d04..b1c477d1 100644
--- a/src/google/protobuf/wire_format_lite_inl.h
+++ b/src/google/protobuf/wire_format_lite_inl.h
@@ -835,12 +835,14 @@ inline int WireFormatLite::EnumSize(int value) {
 }
 
 inline int WireFormatLite::StringSize(const string& value) {
-  return io::CodedOutputStream::VarintSize32(value.size()) +
-         value.size();
+  return static_cast<int>(
+      io::CodedOutputStream::VarintSize32(static_cast<uint32>(value.size())) +
+      value.size());
 }
 inline int WireFormatLite::BytesSize(const string& value) {
-  return io::CodedOutputStream::VarintSize32(value.size()) +
-         value.size();
+  return static_cast<int>(
+      io::CodedOutputStream::VarintSize32(static_cast<uint32>(value.size())) +
+      value.size());
 }