diff --git a/tests/ne_110m_admin_0_countries/out/-z1_-yname_--no-simplification-of-shared-nodes.json b/tests/ne_110m_admin_0_countries/out/-z1_-yname_--no-simplification-of-shared-nodes.json
index f2e3baf5e..d370bc674 100644
--- a/tests/ne_110m_admin_0_countries/out/-z1_-yname_--no-simplification-of-shared-nodes.json
+++ b/tests/ne_110m_admin_0_countries/out/-z1_-yname_--no-simplification-of-shared-nodes.json
@@ -367,7 +367,7 @@
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 ] }
 ] }
 ,
diff --git a/tile.cpp b/tile.cpp
index b48616296..4227d5805 100644
--- a/tile.cpp
+++ b/tile.cpp
@@ -2524,8 +2524,9 @@ long long write_tile(decompressor *geoms, std::atomic<long long> *geompos_in, ch
 				if (layer_features[x].coalesced && layer_features[x].type == VT_LINE) {
 					layer_features[x].geom = remove_noop(layer_features[x].geom, layer_features[x].type, 0);
 					if (!(prevent[P_SIMPLIFY] || (z == maxzoom && prevent[P_SIMPLIFY_LOW]))) {
-						layer_features[x].geom = simplify_lines(layer_features[x].geom, z, tx, ty, line_detail,
-											!(prevent[P_CLIPPING] || prevent[P_DUPLICATION]), simplification, layer_features[x].type == VT_POLYGON ? 4 : 0, shared_nodes, shared_nodes_map, nodepos);
+						// XXX revisit: why does this not take zoom into account?
+						layer_features[x].geom = simplify_lines(layer_features[x].geom, 32, 0, 0, 0,
+											!(prevent[P_CLIPPING] || prevent[P_DUPLICATION]), simplification, layer_features[x].type == VT_POLYGON ? 4 : 0, shared_nodes, NULL, 0);
 					}
 				}