diff --git a/index.html b/index.html
index f2fd6a10..e38546c0 100644
--- a/index.html
+++ b/index.html
@@ -7858,9 +7858,7 @@
   <script src="libs/d3.min.js"></script>
   <script src="libs/priority-queue.min.js"></script>
   <script src="libs/delaunator.min.js"></script>
-  <!-- <script src="modules/utils.js"></script> -->
   <script src="modules/voronoi.js"></script>
-  <!-- <script src="modules/heightmap-templates.js"></script> -->
   <script src="modules/heightmap-generator.js"></script>
   <script src="modules/ocean-layers.js"></script>
   <script src="modules/river-generator.js"></script>
diff --git a/modules/ui/heightmap-editor.js b/modules/ui/heightmap-editor.js
index 4fc7cdbe..6cf1e7ab 100644
--- a/modules/ui/heightmap-editor.js
+++ b/modules/ui/heightmap-editor.js
@@ -989,6 +989,10 @@ function editHeightmap(options) {
       HeightmapGenerator.setGraph(grid);
       restartHistory();
 
+      const seed = byId("templateSeed").value;
+      if (seed) Math.random = aleaPRNG(seed);
+      restartHistory();
+
       for (const step of steps) {
         if (step.style.opacity === "0.5") continue;