diff --git a/common/fltk/src/Fl.cxx b/common/fltk/src/Fl.cxx
index 134e4d0..887c11f 100644
--- a/common/fltk/src/Fl.cxx
+++ b/common/fltk/src/Fl.cxx
@@ -1535,6 +1535,8 @@
   if (xclass_) {
     free(xclass_);
   }
+  free_icons();
+  delete icon_;
 }
 
 // FL_SHOW and FL_HIDE are called whenever the visibility of this widget