diff --git a/src/Mod/Draft/App/DraftDxf.cpp b/src/Mod/Draft/App/DraftDxf.cpp
index d94d71ee0..a8b50c375 100644
--- a/src/Mod/Draft/App/DraftDxf.cpp
+++ b/src/Mod/Draft/App/DraftDxf.cpp
@@ -74,7 +74,7 @@ gp_Pnt DraftDxfRead::makePoint(const double* p)
     return gp_Pnt(sp1,sp2,sp3);
 }
 
-void DraftDxfRead::OnReadLine(const double* s, const double* e, bool hidden)
+void DraftDxfRead::OnReadLine(const double* s, const double* e, bool /*hidden*/)
 {
     gp_Pnt p0 = makePoint(s);
     gp_Pnt p1 = makePoint(e);
@@ -94,7 +94,7 @@ void DraftDxfRead::OnReadPoint(const double* s)
 }
 
 
-void DraftDxfRead::OnReadArc(const double* s, const double* e, const double* c, bool dir, bool hidden)
+void DraftDxfRead::OnReadArc(const double* s, const double* e, const double* c, bool dir, bool /*hidden*/)
 {
     gp_Pnt p0 = makePoint(s);
     gp_Pnt p1 = makePoint(e);
@@ -109,7 +109,7 @@ void DraftDxfRead::OnReadArc(const double* s, const double* e, const double* c,
 }
 
 
-void DraftDxfRead::OnReadCircle(const double* s, const double* c, bool dir, bool hidden)
+void DraftDxfRead::OnReadCircle(const double* s, const double* c, bool dir, bool /*hidden*/)
 {
     gp_Pnt p0 = makePoint(s);
     gp_Dir up(0, 0, 1);
@@ -123,13 +123,13 @@ void DraftDxfRead::OnReadCircle(const double* s, const double* c, bool dir, bool
 }
 
 
-void DraftDxfRead::OnReadSpline(struct SplineData& sd)
+void DraftDxfRead::OnReadSpline(struct SplineData& /*sd*/)
 {
     // not yet implemented
 }
 
 
-void DraftDxfRead::OnReadEllipse(const double* c, double major_radius, double minor_radius, double rotation, double start_angle, double end_angle, bool dir)
+void DraftDxfRead::OnReadEllipse(const double* c, double major_radius, double minor_radius, double rotation, double /*start_angle*/, double /*end_angle*/, bool dir)
 {
     gp_Dir up(0, 0, 1);
     if(!dir)
@@ -143,7 +143,7 @@ void DraftDxfRead::OnReadEllipse(const double* c, double major_radius, double mi
 }
 
 
-void DraftDxfRead::OnReadText(const double *point, const double height, const char* text)
+void DraftDxfRead::OnReadText(const double *point, const double /*height*/, const char* text)
 {
     if (optionImportAnnotations) {
         Base::Vector3d pt(point[0] * optionScaling, point[1] * optionScaling, point[2] * optionScaling);
@@ -189,7 +189,7 @@ void DraftDxfRead::OnReadInsert(const double* point, const double* scale, const
 }
 
 
-void DraftDxfRead::OnReadDimension(const double* s, const double* e, const double* point, double rotation)
+void DraftDxfRead::OnReadDimension(const double* s, const double* e, const double* point, double /*rotation*/)
 {
     if (optionImportAnnotations) {
         Base::Interpreter().runString("import Draft");
diff --git a/src/Mod/Draft/App/dxf.h b/src/Mod/Draft/App/dxf.h
index 4bf834f21..e49fe9e1b 100644
--- a/src/Mod/Draft/App/dxf.h
+++ b/src/Mod/Draft/App/dxf.h
@@ -145,15 +145,15 @@ public:
 
     bool IgnoreErrors() const { return(m_ignore_errors); }
 
-    virtual void OnReadLine(const double* s, const double* e, bool hidden){}
-    virtual void OnReadPoint(const double* s){}
-    virtual void OnReadText(const double* point, const double height, const char* text){}
-    virtual void OnReadArc(const double* s, const double* e, const double* c, bool dir, bool hidden){}
-    virtual void OnReadCircle(const double* s, const double* c, bool dir, bool hidden){}
-    virtual void OnReadEllipse(const double* c, double major_radius, double minor_radius, double rotation, double start_angle, double end_angle, bool dir){}
-    virtual void OnReadSpline(struct SplineData& sd){}
-    virtual void OnReadInsert(const double* point, const double* scale, const char* name, double rotation){}
-    virtual void OnReadDimension(const double* s, const double* e, const double* point, double rotation){}
+    virtual void OnReadLine(const double* /*s*/, const double* /*e*/, bool /*hidden*/){}
+    virtual void OnReadPoint(const double* /*s*/){}
+    virtual void OnReadText(const double* /*point*/, const double /*height*/, const char* /*text*/){}
+    virtual void OnReadArc(const double* /*s*/, const double* /*e*/, const double* /*c*/, bool /*dir*/, bool /*hidden*/){}
+    virtual void OnReadCircle(const double* /*s*/, const double* /*c*/, bool /*dir*/, bool /*hidden*/){}
+    virtual void OnReadEllipse(const double* /*c*/, double /*major_radius*/, double /*minor_radius*/, double /*rotation*/, double /*start_angle*/, double /*end_angle*/, bool /*dir*/){}
+    virtual void OnReadSpline(struct SplineData& /*sd*/){}
+    virtual void OnReadInsert(const double* /*point*/, const double* /*scale*/, const char* /*name*/, double /*rotation*/){}
+    virtual void OnReadDimension(const double* /*s*/, const double* /*e*/, const double* /*point*/, double /*rotation*/){}
     virtual void AddGraphics() const { }
 
     std::string LayerName() const;