--- a/src/dbgengine/nmv-dbg-common.h	2014-07-09 10:36:05.000000000 +0200
+++ b/src/dbgengine/nmv-dbg-common.h	2016-08-04 22:40:28.447842746 +0200
@@ -171,7 +171,9 @@
 
     bool has_slot () const
     {
-        return m_slot;
+        //return m_slot;
+        // https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=822502
+        return static_cast<bool> (m_slot);
     }
 
     template<class T>