diff --git a/Foundation/include/Poco/Platform.h b/Foundation/include/Poco/Platform.h
index 2e8b34e78..799db417e 100644
--- a/Foundation/include/Poco/Platform.h
+++ b/Foundation/include/Poco/Platform.h
@@ -231,10 +231,10 @@
 #endif
 
 
-#if defined(_MSC_VER)
-	#define POCO_COMPILER_MSVC
-#elif defined(__clang__)
+#if defined(__clang__)
 	#define POCO_COMPILER_CLANG
+#elif defined(_MSC_VER)
+	#define POCO_COMPILER_MSVC
 #elif defined (__GNUC__)
 	#define POCO_COMPILER_GCC
 #elif defined (__MINGW32__) || defined (__MINGW64__)
diff --git a/Foundation/include/Poco/Tuple.h b/Foundation/include/Poco/Tuple.h
index ab1439d26..000749695 100644
--- a/Foundation/include/Poco/Tuple.h
+++ b/Foundation/include/Poco/Tuple.h
@@ -25,7 +25,7 @@
 namespace Poco {
 
 
-#if defined(_MSC_VER) 
+#if defined(POCO_COMPILER_MSVC)
 #define POCO_TYPEWRAPPER_DEFAULTVALUE(T) TypeWrapper<T>::TYPE()
 #else
 #define POCO_TYPEWRAPPER_DEFAULTVALUE(T) typename TypeWrapper<T>::TYPE()