diff --git a/private/storagethread.cpp b/private/storagethread.cpp
index 58a6c7c58..417e2ff66 100644
--- a/private/storagethread.cpp
+++ b/private/storagethread.cpp
@@ -83,7 +83,7 @@ void StorageThread::initializeDb(StorageJob *caller)
     m_db.transaction();
 }
 
-void StorageThread::save(QWeakPointer<StorageJob> wcaller, const QVariantMap &params)
+void StorageThread::save(QWeakPointer<StorageJob> wcaller, const QVariantHash &params)
 {
     StorageJob *caller = wcaller.data();
     if (!caller) {
@@ -185,7 +185,7 @@ void StorageThread::save(QWeakPointer<StorageJob> wcaller, const QVariantMap &pa
     emit newResult(caller, true);
 }
 
-void StorageThread::retrieve(QWeakPointer<StorageJob> wcaller, const QVariantMap &params)
+void StorageThread::retrieve(QWeakPointer<StorageJob> wcaller, const QVariantHash &params)
 {
     StorageJob *caller = wcaller.data();
     if (!caller) {
@@ -259,7 +259,7 @@ void StorageThread::retrieve(QWeakPointer<StorageJob> wcaller, const QVariantMap
     emit newResult(caller, result);
 }
 
-void StorageThread::deleteEntry(QWeakPointer<StorageJob> wcaller, const QVariantMap &params)
+void StorageThread::deleteEntry(QWeakPointer<StorageJob> wcaller, const QVariantHash &params)
 {
     StorageJob *caller = wcaller.data();
     if (!caller) {
@@ -289,7 +289,7 @@ void StorageThread::deleteEntry(QWeakPointer<StorageJob> wcaller, const QVariant
     emit newResult(caller, success);
 }
 
-void StorageThread::expire(QWeakPointer<StorageJob> wcaller, const QVariantMap &params)
+void StorageThread::expire(QWeakPointer<StorageJob> wcaller, const QVariantHash &params)
 {
     StorageJob *caller = wcaller.data();
     if (!caller) {
diff --git a/private/storagethread_p.h b/private/storagethread_p.h
index 5a67e8f90..bfbcc101b 100644
--- a/private/storagethread_p.h
+++ b/private/storagethread_p.h
@@ -42,10 +42,10 @@ public:
     static Plasma::StorageThread *self();
 
 public Q_SLOTS:
-    void save(QWeakPointer<StorageJob> caller, const QVariantMap &parameters);
-    void retrieve(QWeakPointer<StorageJob> caller, const QVariantMap &parameters);
-    void deleteEntry(QWeakPointer<StorageJob> caller, const QVariantMap &parameters);
-    void expire(QWeakPointer<StorageJob> caller, const QVariantMap &parameters);
+    void save(QWeakPointer<StorageJob> caller, const QVariantHash &parameters);
+    void retrieve(QWeakPointer<StorageJob> caller, const QVariantHash &parameters);
+    void deleteEntry(QWeakPointer<StorageJob> caller, const QVariantHash &parameters);
+    void expire(QWeakPointer<StorageJob> caller, const QVariantHash &parameters);
 
 Q_SIGNALS:
     void newResult(StorageJob* caller, const QVariant &result);