diff --git a/src/laybasic/laybasic/layNetlistBrowserPage.cc b/src/laybasic/laybasic/layNetlistBrowserPage.cc
index 2a74de56c..e628cfcb8 100644
--- a/src/laybasic/laybasic/layNetlistBrowserPage.cc
+++ b/src/laybasic/laybasic/layNetlistBrowserPage.cc
@@ -1192,6 +1192,7 @@ NetlistBrowserPage::produce_highlights_for_net (const db::Net *net, size_t &n_ma
     while (! shapes.at_end ()) {
 
       if (shapes->type () != db::NetShape::Polygon) {
+        ++shapes;
         continue;
       }