diff --git a/src/plugins/projectexplorer/abstractmsvctoolchain.cpp b/src/plugins/projectexplorer/abstractmsvctoolchain.cpp
index 94b17e65cfb27461f53b5d9966e47f09c8aa0ce1..cd86b0d1e85bceb6c4c9e7bc696b5dfc0951aa4a 100644
--- a/src/plugins/projectexplorer/abstractmsvctoolchain.cpp
+++ b/src/plugins/projectexplorer/abstractmsvctoolchain.cpp
@@ -161,6 +161,7 @@ bool AbstractMsvcToolChain::canClone() const
 
 QByteArray AbstractMsvcToolChain::msvcPredefinedMacros(const Utils::Environment& env) const
 {
+    Q_UNUSED(env);
     QByteArray predefinedMacros = "#define __MSVCRT__\n"
             "#define __w64\n"
             "#define __int64 long long\n"
diff --git a/src/plugins/projectexplorer/wincetoolchain.cpp b/src/plugins/projectexplorer/wincetoolchain.cpp
index a480e03181c937b47934955656cfa73aa8361d15..9e42b4aeaa72cf56fc4992df77d785a61a896c35 100644
--- a/src/plugins/projectexplorer/wincetoolchain.cpp
+++ b/src/plugins/projectexplorer/wincetoolchain.cpp
@@ -453,6 +453,7 @@ QList<ToolChain *> WinCEToolChainFactory::autoDetect()
 
 QString WinCEToolChain::autoDetectCdbDebugger(QStringList *checkedDirectories /* = 0 */)
 {
+    Q_UNUSED(checkedDirectories);
     return QString();
 }