diff --git a/src/utils/worker.cpp b/src/utils/worker.cpp
index 8c32fe08f..277f7e6c7 100644
--- a/src/utils/worker.cpp
+++ b/src/utils/worker.cpp
@@ -3,7 +3,7 @@
  * @author Martin Pulec     <pulec@cesnet.cz>
  */
 /*
- * Copyright (c) 2013 CESNET, z. s. p. o.
+ * Copyright (c) 2013-2024 CESNET, z. s. p. o.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,10 +35,6 @@
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "utils/misc.h" // get_cpu_core_count
-#include "utils/thread.h"
-#include "utils/worker.h"
-
 #include <algorithm>
 #include <cassert>
 #include <pthread.h>
@@ -46,7 +42,13 @@
 #include <set>
 #include <vector>
 
-using namespace std;
+#include "utils/misc.h" // get_cpu_core_count
+#include "utils/thread.h"
+#include "utils/worker.h"
+
+using std::queue;
+using std::set;
+using std::vector;
 
 struct wp_worker;