diff --git a/daemon/browser.cpp b/daemon/browser.cpp
index 62281c1..a8d98bd 100644
--- a/daemon/browser.cpp
+++ b/daemon/browser.cpp
@@ -96,7 +96,7 @@ bool Browser::worker() {
           BOOST_LOG_TRIVIAL(debug)
               << "browser:: refreshing SAP source " << it->id;
           // annoucement, update last seen and announce period
-          auto last_update_ =
+          last_update_ =
               duration_cast<second_t>(steady_clock::now() - startup_).count();
           auto upd_source{*it};
           if ((last_update_ - upd_source.last_seen) != 0) {
diff --git a/daemon/main.cpp b/daemon/main.cpp
index cf567d2..8706fbe 100644
--- a/daemon/main.cpp
+++ b/daemon/main.cpp
@@ -39,7 +39,7 @@ namespace po = boost::program_options;
 namespace postyle = boost::program_options::command_line_style;
 namespace logging = boost::log;
 
-static std::string version("bondagit-1.6.2");
+static const std::string version("bondagit-1.6.2");
 static std::atomic<bool> terminate = false;
 
 void termination_handler(int signum) {
diff --git a/daemon/mdns_server.cpp b/daemon/mdns_server.cpp
index bbefb6e..6626e6d 100644
--- a/daemon/mdns_server.cpp
+++ b/daemon/mdns_server.cpp
@@ -38,6 +38,8 @@ struct AvahiLockGuard {
       avahi_threaded_poll_unlock(poll_);
     }
   }
+  AvahiLockGuard(const AvahiLockGuard&) = delete;
+  AvahiLockGuard& operator=(const AvahiLockGuard&) = delete;
 
  private:
   AvahiThreadedPoll* poll_{nullptr};