diff --git a/src/lib/base/Stopwatch.cpp b/src/lib/base/Stopwatch.cpp
index bb0cc12cc..8871f8d93 100644
--- a/src/lib/base/Stopwatch.cpp
+++ b/src/lib/base/Stopwatch.cpp
@@ -19,11 +19,6 @@ Stopwatch::Stopwatch(bool triggered) : m_mark(0.0), m_triggered(triggered), m_st
   }
 }
 
-Stopwatch::~Stopwatch()
-{
-  // do nothing
-}
-
 double Stopwatch::reset()
 {
   if (m_stopped) {
diff --git a/src/lib/base/Stopwatch.h b/src/lib/base/Stopwatch.h
index e82bf3539..d4be45ffd 100644
--- a/src/lib/base/Stopwatch.h
+++ b/src/lib/base/Stopwatch.h
@@ -21,8 +21,8 @@ public:
   The default constructor does an implicit reset() or setTrigger().
   If triggered == false then the clock starts ticking.
   */
-  Stopwatch(bool triggered = false);
-  ~Stopwatch();
+  explicit Stopwatch(bool triggered = false);
+  ~Stopwatch() = default;
 
   //! @name manipulators
   //@{