diff --git a/src/KeepAlive.cpp b/src/KeepAlive.cpp
index 23a1232..2735ac0 100644
--- a/src/KeepAlive.cpp
+++ b/src/KeepAlive.cpp
@@ -72,7 +72,7 @@ etcd::KeepAlive::KeepAlive(
     std::function<void(std::exception_ptr)> const& handler, int ttl,
     int64_t lease_id, std::string const& target_name_override)
     : KeepAlive(SyncClient(address, ca, cert, privkey, target_name_override),
-                ttl, lease_id) {}
+                handler, ttl, lease_id) {}
 
 etcd::KeepAlive::KeepAlive(
     SyncClient const& client,
diff --git a/src/SyncClient.cpp b/src/SyncClient.cpp
index 7625514..7ab9d77 100644
--- a/src/SyncClient.cpp
+++ b/src/SyncClient.cpp
@@ -147,10 +147,9 @@ const std::string strip_and_resolve_addresses(std::string const& address) {
   return "ipv4:///" + stripped_address;
 }
 
-const bool authenticate(std::shared_ptr<grpc::Channel> const& channel,
-                        std::string const& username,
-                        std::string const& password,
-                        std::string& token_or_message) {
+bool authenticate(std::shared_ptr<grpc::Channel> const& channel,
+                  std::string const& username, std::string const& password,
+                  std::string& token_or_message) {
   // run a round of auth
   auto auth_stub = etcdserverpb::Auth::NewStub(channel);
   ClientContext context;