diff --git a/apps/launcher/unshield_thread.cpp b/apps/launcher/unshield_thread.cpp
index 57ba849dc..34b6a6d46 100644
--- a/apps/launcher/unshield_thread.cpp
+++ b/apps/launcher/unshield_thread.cpp
@@ -473,3 +473,10 @@ void UnshieldThread::run()
     extract();
     emit close();
 }
+
+UnshieldThread::UnshieldThread()
+{
+    mMorrowindDone = false;
+    mTribunalDone = false;
+    mBloodmoonDone = false;
+}
diff --git a/apps/launcher/unshield_thread.hpp b/apps/launcher/unshield_thread.hpp
index 0def3ab1d..b48d3d987 100644
--- a/apps/launcher/unshield_thread.hpp
+++ b/apps/launcher/unshield_thread.hpp
@@ -28,6 +28,8 @@ class UnshieldThread : public QThread
 
         std::string GetMWEsmPath();
 
+        UnshieldThread();
+
     private:
 
         void extract_cab(const boost::filesystem::path& cab, const boost::filesystem::path& output_dir, bool extract_ini = false);
@@ -37,9 +39,9 @@ class UnshieldThread : public QThread
         boost::filesystem::path mTribunalPath;
         boost::filesystem::path mBloodmoonPath;
 
-        bool mMorrowindDone = false;
-        bool mTribunalDone = false;
-        bool mBloodmoonDone = false;
+        bool mMorrowindDone;
+        bool mTribunalDone;
+        bool mBloodmoonDone;
 
         boost::filesystem::path mOutputPath;