diff --git a/libsrc/meshing/geomsearch.cpp b/libsrc/meshing/geomsearch.cpp
index 65717753..e1f6fdd7 100644
--- a/libsrc/meshing/geomsearch.cpp
+++ b/libsrc/meshing/geomsearch.cpp
@@ -106,6 +106,12 @@ namespace netgen
 	size.i1 = int (boxext.X()/midext.X()/hashelemsizefactor+1);
 	size.i2 = int (boxext.Y()/midext.Y()/hashelemsizefactor+1);
 	size.i3 = int (boxext.Z()/midext.Z()/hashelemsizefactor+1);
+
+	int nfaces = faces->Size();
+	size.i1 = min(size.i1, nfaces);
+	size.i2 = min(size.i2, nfaces);
+	size.i3 = min(size.i3, nfaces);
+
 	// PrintMessage (5, "hashsizes = ", size.i1, ", ", size.i2, ", ", size.i3);
       
 	elemsize.X()=boxext.X()/size.i1;