diff --git a/src/declarativeimports/core/units.cpp b/src/declarativeimports/core/units.cpp
index 2a1a1fa8e..7df81c116 100644
--- a/src/declarativeimports/core/units.cpp
+++ b/src/declarativeimports/core/units.cpp
@@ -56,7 +56,7 @@ Units::Units (QObject *parent)
     themeChanged();
     connect(&m_theme, SIGNAL(themeChanged()),
             this, SLOT(themeChanged()));
-    installEventFilter(qApp);
+    qApp->installEventFilter(this);
 
     const QString configFile = QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation) + QLatin1Char('/') + plasmarc;
     KDirWatch::self()->addFile(configFile);
diff --git a/src/plasma/private/theme_p.cpp b/src/plasma/private/theme_p.cpp
index 4fc29b138..c407c8e8b 100644
--- a/src/plasma/private/theme_p.cpp
+++ b/src/plasma/private/theme_p.cpp
@@ -604,11 +604,11 @@ void ThemePrivate::setThemeName(const QString &tempThemeName, bool writeSettings
     if (colorsFile.isEmpty()) {
         colors = 0;
         if (qApp) {
-            installEventFilter(qApp);
+            qApp->installEventFilter(this);
         }
     } else {
         if (qApp) {
-            removeEventFilter(qApp);
+            qApp->removeEventFilter(this);
         }
         colors = KSharedConfig::openConfig(colorsFile);
     }