diff --git a/shapefiles.mss b/shapefiles.mss
index 4d0efc369f..357385bd3a 100644
--- a/shapefiles.mss
+++ b/shapefiles.mss
@@ -14,6 +14,13 @@
 #world {
   [zoom >= 0][zoom < 10] {
     polygon-fill: @land-color;
+    polygon-simplify: 5;
+    [zoom < 8] {
+      line-color: darken(@water-color,20%);
+      line-simplify: 5;
+      line-width: 0.5;
+      line-offset: 0.5;
+    }
   }
 }