diff --git a/abstractrunner.cpp b/abstractrunner.cpp
index 288fba57b..0b2852574 100644
--- a/abstractrunner.cpp
+++ b/abstractrunner.cpp
@@ -75,7 +75,10 @@ public:
 
     ~AbstractRunnerPrivate()
     {
+        delete script;
+        script = 0;
         delete package;
+        package = 0;
     }
 
     bool hasRunOptions;
diff --git a/dataengine.cpp b/dataengine.cpp
index 8abf77d4e..184934efb 100644
--- a/dataengine.cpp
+++ b/dataengine.cpp
@@ -459,7 +459,10 @@ DataEnginePrivate::DataEnginePrivate(DataEngine* e, KService::Ptr service)
 
 DataEnginePrivate::~DataEnginePrivate()
 {
+    delete script;
+    script = 0;
     delete package;
+    package = 0;
 }
 
 void DataEnginePrivate::internalUpdateSource(DataContainer* source)