diff --git a/examples/wxWidgets/main.cpp b/examples/wxWidgets/main.cpp
index 303d014..9f35981 100644
--- a/examples/wxWidgets/main.cpp
+++ b/examples/wxWidgets/main.cpp
@@ -23,9 +23,12 @@ public:
   }
 
 private:
-  void OnExit(wxCommandEvent &event) { Close(true); }
+  void OnExit(wxCommandEvent &event) { 
+    (void)event; // Disable unused variable warning
+    Close(true); }
 
   void OnPaint(wxPaintEvent &event) {
+    (void)event; // Disable unused variable warning
     wxPaintDC current_dc(this);
     dc = &current_dc;
 
diff --git a/libs/chess-move-interface b/libs/chess-move-interface
index 03ce412..14ac3bb 160000
--- a/libs/chess-move-interface
+++ b/libs/chess-move-interface
@@ -1 +1 @@
-Subproject commit 03ce4126cfa09ff0a55e70bdc44c1d5dd4035043
+Subproject commit 14ac3bba33a037e4b46b3f7ec9ba05760145f288
diff --git a/src/components/Component.hpp b/src/components/Component.hpp
index 564660a..45e4390 100644
--- a/src/components/Component.hpp
+++ b/src/components/Component.hpp
@@ -12,6 +12,7 @@ protected:
 
 public:
   Component(Status *s) : status(s){};
+  virtual ~Component(){};
   std::vector<Element> GetElements() { return (this->elements); }
   virtual void Refresh() = 0;
   virtual void SyncCache() {};
diff --git a/src/components/MoveTable.cpp b/src/components/MoveTable.cpp
index 653356a..4878275 100644
--- a/src/components/MoveTable.cpp
+++ b/src/components/MoveTable.cpp
@@ -181,7 +181,7 @@ std::uint32_t MoveTable::UpdateMoves(CMI::HalfMove *m, std::uint32_t line,
 
   //---------- Variations ----------
   if (m->GetVariations().size() > 0) {
-    line = DrawVariations(m, line, indent, move_bound, indent_black);
+    line = DrawVariations(m, line, indent, move_bound);
   }
 
   //---------- Mainline ----------
@@ -286,8 +286,7 @@ std::uint32_t MoveTable::DrawComment(CMI::HalfMove *m, std::uint32_t line,
 
 std::uint32_t MoveTable::DrawVariations(CMI::HalfMove *m, std::uint32_t line,
                                         std::uint32_t indent,
-                                        const Element &move_bound,
-                                        const char &indent_black) {
+                                        const Element &move_bound) {
   // Show three dots next to move if white turn
   if ((m->GetVariations().size() == 0) && !m->IsBlack()) {
     DRAW_DOTS(status->MarginBarWidth + status->MoveWidth * (indent + 1),
diff --git a/src/components/MoveTable.hpp b/src/components/MoveTable.hpp
index e357287..1b6323e 100644
--- a/src/components/MoveTable.hpp
+++ b/src/components/MoveTable.hpp
@@ -60,8 +60,7 @@ class MoveTable : public Component {
   std::uint32_t DrawComment(CMI::HalfMove *m, std::uint32_t line, std::uint32_t indent,
                            const Element &move_bound, const char &indent_black);
   std::uint32_t DrawVariations(CMI::HalfMove *m, std::uint32_t line, std::uint32_t indent,
-                              const Element &move_bound,
-                              const char &indent_black);
+                              const Element &move_bound);
 public:
   MoveTable(Status *s);
   void Refresh();