diff --git a/http2/hpack/decoder/hpack_entry_decoder_test.cc b/http2/hpack/decoder/hpack_entry_decoder_test.cc
index b447e82..d4113f8 100644
--- a/http2/hpack/decoder/hpack_entry_decoder_test.cc
+++ b/http2/hpack/decoder/hpack_entry_decoder_test.cc
@@ -167,7 +167,7 @@
   for (int n = 0; n < 10; n++) {
     const uint32_t ndx = 1 + Random().Rand8();
     const bool value_is_huffman_encoded = (n % 2) == 0;
-    const Http2String value = Random().RandString(Random().Rand8());
+    const std::string value = Random().RandString(Random().Rand8());
     HpackBlockBuilder hbb;
     hbb.AppendNameIndexAndLiteralValue(entry_type_, ndx,
                                        value_is_huffman_encoded, value);
@@ -186,10 +186,10 @@
   for (int n = 0; n < 10; n++) {
     const bool name_is_huffman_encoded = (n & 1) == 0;
     const int name_len = 1 + Random().Rand8();
-    const Http2String name = Random().RandString(name_len);
+    const std::string name = Random().RandString(name_len);
     const bool value_is_huffman_encoded = (n & 2) == 0;
     const int value_len = Random().Skewed(10);
-    const Http2String value = Random().RandString(value_len);
+    const std::string value = Random().RandString(value_len);
     HpackBlockBuilder hbb;
     hbb.AppendLiteralNameAndValue(entry_type_, name_is_huffman_encoded, name,
                                   value_is_huffman_encoded, value);