diff --git a/src/corelib/global/qlibraryinfo.cpp b/src/corelib/global/qlibraryinfo.cpp
index 03ee0730db..b4ba0b5b2e 100644
--- a/src/corelib/global/qlibraryinfo.cpp
+++ b/src/corelib/global/qlibraryinfo.cpp
@@ -663,6 +663,8 @@ QStringList QLibraryInfo::platformPluginArguments(const QString &platformName)
                 + QLatin1String("Arguments");
         return settings->value(key).toStringList();
     }
+#else
+    Q_UNUSED(platformName);
 #endif // !QT_BUILD_QMAKE && !QT_NO_SETTINGS
     return QStringList();
 }
diff --git a/src/gui/kernel/qplatforminputcontextfactory.cpp b/src/gui/kernel/qplatforminputcontextfactory.cpp
index 5f4f8d88fa..c59d89fabe 100644
--- a/src/gui/kernel/qplatforminputcontextfactory.cpp
+++ b/src/gui/kernel/qplatforminputcontextfactory.cpp
@@ -82,6 +82,8 @@ QPlatformInputContext *QPlatformInputContextFactory::create(const QString& key)
 
         delete ic;
     }
+#else
+    Q_UNUSED(key);
 #endif
     return 0;
 }