1 files changed, 2 insertions, 2 deletions
diff --git a/src/google/protobuf/util/internal/field_mask_utility.h b/src/google/protobuf/util/internal/field_mask_utility.h
index 7d1c2af0..97755804 100644
--- a/src/google/protobuf/util/internal/field_mask_utility.h
+++ b/src/google/protobuf/util/internal/field_mask_utility.h
@@ -45,14 +45,14 @@ namespace protobuf {
 namespace util {
 namespace converter {
 
-typedef string (*ConverterCallback)(StringPiece);
+typedef std::string (*ConverterCallback)(StringPiece);
 typedef ResultCallback1<util::Status, StringPiece>* PathSinkCallback;
 
 // Applies a 'converter' to each segment of a FieldMask path and returns the
 // result. Quoted strings in the 'path' are copied to the output as-is without
 // converting their content. Escaping is supported within quoted strings.
 // For example, "ab\"_c" will be returned as "ab\"_c" without any changes.
-string ConvertFieldMaskPath(const StringPiece path,
+std::string ConvertFieldMaskPath(const StringPiece path,
                             ConverterCallback converter);
 
 // Decodes a compact list of FieldMasks. For example, "a.b,a.c.d,a.c.e" will be