diff --git a/include/fastrtps/utils/TimedMutex.hpp b/include/fastrtps/utils/TimedMutex.hpp
index d5b15dcde02..f412bb3270b 100644
--- a/include/fastrtps/utils/TimedMutex.hpp
+++ b/include/fastrtps/utils/TimedMutex.hpp
@@ -70,7 +70,7 @@ class TimedMutex
     bool try_lock_for(
             const std::chrono::duration<Rep, Period>& rel_time)
     {
-        return try_lock_until(chrono::steady_clock::now() + rel_time);
+        return try_lock_until(std::chrono::steady_clock::now() + rel_time);
     }
 
     template <class Clock, class Duration>
@@ -139,7 +139,7 @@ class RecursiveTimedMutex
     bool try_lock_for(
             const std::chrono::duration<Rep, Period>& rel_time)
     {
-        return try_lock_until(chrono::steady_clock::now() + rel_time);
+        return try_lock_until(std::chrono::steady_clock::now() + rel_time);
     }
 
     template <class Clock, class Duration>