diff --git a/Geo/gmshLevelset.h b/Geo/gmshLevelset.h
index 2712cc21631e590e1b7f789083e73733d84fb352..c0a8908c7a35132c872a110066ed4d42401fa56a 100644
--- a/Geo/gmshLevelset.h
+++ b/Geo/gmshLevelset.h
@@ -209,7 +209,6 @@ protected:
   void init ();
 
 public:
-  gLevelsetQuadric() : gLevelsetPrimitive() {init(); }
   gLevelsetQuadric(int tag=1) : gLevelsetPrimitive(tag) {init(); }
   gLevelsetQuadric(const gLevelsetQuadric &);
   virtual ~gLevelsetQuadric() {}