diff --git a/src/lib/plugin/kpluginfactory.cpp b/src/lib/plugin/kpluginfactory.cpp
--- a/src/lib/plugin/kpluginfactory.cpp
+++ b/src/lib/plugin/kpluginfactory.cpp
@@ -85,7 +85,7 @@
                 }
             }
         }
-        d->createInstanceHash.insertMulti(keyword, KPluginFactoryPrivate::Plugin(metaObject, instanceFunction));
+        d->createInstanceHash.insert(keyword, KPluginFactoryPrivate::Plugin(metaObject, instanceFunction));
     }
 }
 
diff --git a/src/lib/plugin/kpluginfactory_p.h b/src/lib/plugin/kpluginfactory_p.h
--- a/src/lib/plugin/kpluginfactory_p.h
+++ b/src/lib/plugin/kpluginfactory_p.h
@@ -24,7 +24,7 @@
 
 #include "kpluginfactory.h"
 
-#include <QHash>
+#include <QMultiHash>
 
 class KPluginFactoryPrivate
 {
@@ -37,7 +37,7 @@
     {
     }
 
-    QHash<QString, Plugin> createInstanceHash;
+    QMultiHash<QString, Plugin> createInstanceHash;
     QString catalogName;
     bool catalogInitialized;