diff --git a/libsearch/plugininterface/search-plugin-iface.h b/libsearch/plugininterface/search-plugin-iface.h
index 19806d7..d4ccdb9 100644
--- a/libsearch/plugininterface/search-plugin-iface.h
+++ b/libsearch/plugininterface/search-plugin-iface.h
@@ -23,11 +23,12 @@ public:
     };
     virtual ~SearchPluginIface() {}
     virtual QString getPluginName() = 0;
-    virtual void KeywordSearch(QString keyword,QQueue<resultInfo> *searchResult);
-    virtual void openAction(QString name, QString key);
+    virtual void KeywordSearch(QString keyword,QQueue<resultInfo> *searchResult) = 0;
+    virtual void openAction(QString name, QString key) = 0;
 
 };
 }
+
 Q_DECLARE_INTERFACE(Zeeker::SearchPluginIface, SearchPluginIface_iid)
 
 #endif // SEARCHPLUGINIFACE_H
diff --git a/libsearch/pluginmanage/search-plugin-manager.cpp b/libsearch/pluginmanage/search-plugin-manager.cpp
index f81bbe0..8adbfdb 100644
--- a/libsearch/pluginmanage/search-plugin-manager.cpp
+++ b/libsearch/pluginmanage/search-plugin-manager.cpp
@@ -38,3 +38,8 @@ void SearchPluginManager::close()
 SearchPluginManager::SearchPluginManager(QObject *parent)
 {
 }
+
+SearchPluginManager::~SearchPluginManager()
+{
+    m_hash.clear();
+}