diff --git a/contrib/Tetgen1.5/tetgen.h b/contrib/Tetgen1.5/tetgen.h
index 272d77d360f5aafb8ba54bc890397c08fb3474ee..efe504bdf15baa7cdd9be7dc33dd9f7e388ae084 100644
--- a/contrib/Tetgen1.5/tetgen.h
+++ b/contrib/Tetgen1.5/tetgen.h
@@ -763,7 +763,7 @@ public:
     delmaxfliplevel = 1;
     order = 1;
     reversetetori = 0;
-    steinerleft = 0;//-1;
+    steinerleft = -1;
     no_sort = 0;
     hilbert_order = 52; //-1;
     hilbert_limit = 8;
@@ -2156,7 +2156,7 @@ public:
     insegments = 0l;
     hullsize = 0l;
     meshedges = meshhulledges = 0l;
-    steinerleft = 0;//-1;
+    steinerleft = -1;
     dupverts = 0l;
     unuverts = 0l;
     nonregularcount = 0l;