diff --git a/qse/include/qse/Types.hpp b/qse/include/qse/Types.hpp
index ab715953..ab5aaf17 100644
--- a/qse/include/qse/Types.hpp
+++ b/qse/include/qse/Types.hpp
@@ -34,7 +34,7 @@
 #include <qse/types.h>
 #include <qse/macros.h>
 
-#if (__cplusplus >= 201103L) // C++11
+#if (__cplusplus >= 201103L) || (defined(_MSC_VER) && _MSC_VER >= 1900) // C++11 or later
 
 	#define QSE_CPP_NOEXCEPT noexcept(true)
 	#define QSE_CPP_EXPLICIT explicit
diff --git a/qse/include/qse/si/Thread.hpp b/qse/include/qse/si/Thread.hpp
index 69446c28..bd16a6ff 100644
--- a/qse/include/qse/si/Thread.hpp
+++ b/qse/include/qse/si/Thread.hpp
@@ -118,8 +118,10 @@ class ThreadC: public Thread
 {
 public:
 	ThreadC () {}
-	ThreadC (F& f): __lfunc(f) { }
-	//ThreadC (F&& f): __lfunc(QSE_CPP_RVREF(f)) { }
+	ThreadC (const F& f): __lfunc(f) {}
+#if defined(QSE_CPP_ENABLE_CPP11_MOVE)
+	ThreadC (F&& f): __lfunc(QSE_CPP_RVREF(f)) {}
+#endif
 
 	static int call_func (qse_thr_t* thr, void* ctx)
 	{