diff --git a/riak/pb/riak_dt_pb2.py b/riak/pb/riak_dt_pb2.py
index ba9a590d..36969e4c 100644
--- a/riak/pb/riak_dt_pb2.py
+++ b/riak/pb/riak_dt_pb2.py
@@ -995,5 +995,5 @@ class DtUpdateResp(_message.Message):
 
 
 DESCRIPTOR.has_options = True
-DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), '\n\027com.basho.riak.protobufB\010RiakDtPB')
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), b'\n\027com.basho.riak.protobufB\010RiakDtPB')
 # @@protoc_insertion_point(module_scope)
diff --git a/riak/pb/riak_kv_pb2.py b/riak/pb/riak_kv_pb2.py
index f1832df6..432feb53 100644
--- a/riak/pb/riak_kv_pb2.py
+++ b/riak/pb/riak_kv_pb2.py
@@ -1983,5 +1983,5 @@ class RpbCoverageEntry(_message.Message):
 
 
 DESCRIPTOR.has_options = True
-DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), '\n\027com.basho.riak.protobufB\010RiakKvPB')
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), b'\n\027com.basho.riak.protobufB\010RiakKvPB')
 # @@protoc_insertion_point(module_scope)
diff --git a/riak/pb/riak_pb2.py b/riak/pb/riak_pb2.py
index 72dba122..759b58b1 100644
--- a/riak/pb/riak_pb2.py
+++ b/riak/pb/riak_pb2.py
@@ -803,5 +803,5 @@ class RpbAuthReq(_message.Message):
 
 
 DESCRIPTOR.has_options = True
-DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), '\n\027com.basho.riak.protobufB\006RiakPB')
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), b'\n\027com.basho.riak.protobufB\006RiakPB')
 # @@protoc_insertion_point(module_scope)
diff --git a/riak/pb/riak_search_pb2.py b/riak/pb/riak_search_pb2.py
index b20adbfc..d59a2c38 100644
--- a/riak/pb/riak_search_pb2.py
+++ b/riak/pb/riak_search_pb2.py
@@ -220,5 +220,5 @@ class RpbSearchQueryResp(_message.Message):
 
 
 DESCRIPTOR.has_options = True
-DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), '\n\027com.basho.riak.protobufB\014RiakSearchPB')
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), b'\n\027com.basho.riak.protobufB\014RiakSearchPB')
 # @@protoc_insertion_point(module_scope)
diff --git a/riak/pb/riak_ts_pb2.py b/riak/pb/riak_ts_pb2.py
index 5033db67..58b00921 100644
--- a/riak/pb/riak_ts_pb2.py
+++ b/riak/pb/riak_ts_pb2.py
@@ -930,5 +930,5 @@ class TsRange(_message.Message):
 
 
 DESCRIPTOR.has_options = True
-DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), '\n\027com.basho.riak.protobufB\010RiakTsPB')
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), b'\n\027com.basho.riak.protobufB\010RiakTsPB')
 # @@protoc_insertion_point(module_scope)
diff --git a/riak/pb/riak_yokozuna_pb2.py b/riak/pb/riak_yokozuna_pb2.py
index 6cc20395..df136fc3 100644
--- a/riak/pb/riak_yokozuna_pb2.py
+++ b/riak/pb/riak_yokozuna_pb2.py
@@ -382,5 +382,5 @@ class RpbYokozunaSchemaGetResp(_message.Message):
 
 
 DESCRIPTOR.has_options = True
-DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), '\n\027com.basho.riak.protobufB\016RiakYokozunaPB')
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), b'\n\027com.basho.riak.protobufB\016RiakYokozunaPB')
 # @@protoc_insertion_point(module_scope)