diff --git a/lib/base/timer.cpp b/lib/base/timer.cpp
index d862f8088..0eb03f754 100644
--- a/lib/base/timer.cpp
+++ b/lib/base/timer.cpp
@@ -292,7 +292,7 @@ void Timer::TimerThreadProc()
 
 		if (wait > 0.01) {
 			/* Wait for the next timer. */
-			l_TimerCV.timed_wait(lock, boost::posix_time::milliseconds(wait * 1000));
+			l_TimerCV.timed_wait(lock, boost::posix_time::milliseconds(long(wait * 1000)));
 
 			continue;
 		}
diff --git a/lib/checker/checkercomponent.cpp b/lib/checker/checkercomponent.cpp
index 12e43b73c..c26db9de1 100644
--- a/lib/checker/checkercomponent.cpp
+++ b/lib/checker/checkercomponent.cpp
@@ -125,7 +125,7 @@ void CheckerComponent::CheckThreadProc()
 
 		if (wait > 0) {
 			/* Wait for the next check. */
-			m_CV.timed_wait(lock, boost::posix_time::milliseconds(wait * 1000));
+			m_CV.timed_wait(lock, boost::posix_time::milliseconds(long(wait * 1000)));
 
 			continue;
 		}
diff --git a/lib/remote/eventqueue.cpp b/lib/remote/eventqueue.cpp
index 756c9b9a8..5f3b01a2f 100644
--- a/lib/remote/eventqueue.cpp
+++ b/lib/remote/eventqueue.cpp
@@ -108,7 +108,7 @@ Dictionary::Ptr EventQueue::WaitForEvent(void *client, double timeout)
 			return result;
 		}
 
-		if (!m_CV.timed_wait(lock, boost::posix_time::milliseconds(timeout * 1000)))
+		if (!m_CV.timed_wait(lock, boost::posix_time::milliseconds(long(timeout * 1000))))
 			return nullptr;
 	}
 }