diff --git a/eeschema/project_rescue.cpp b/eeschema/project_rescue.cpp
index 7150928532..fe5dbfd502 100644
--- a/eeschema/project_rescue.cpp
+++ b/eeschema/project_rescue.cpp
@@ -487,10 +487,6 @@ void RESCUER::UndoRescues()
 
 bool SCH_EDIT_FRAME::RescueProject( bool aRunningOnDemand )
 {
-    // Data that will be used throughout the operation
-    std::vector<RESCUE_CANDIDATE>   candidates;
-    wxString                part_name_suffix;
-
     RESCUER rescuer( *this, Prj() );
 
     rescuer.FindCandidates();
diff --git a/eeschema/project_rescue.h b/eeschema/project_rescue.h
index bc961da326..a179914d03 100644
--- a/eeschema/project_rescue.h
+++ b/eeschema/project_rescue.h
@@ -56,6 +56,8 @@ enum RESCUE_TYPE
 class RESCUE_CANDIDATE
 {
 public:
+    virtual ~RESCUE_CANDIDATE() {}
+
     /**
      * Function GetRequestedName
      * Get the name that was originally requested in the schematic