diff --git a/jsons/TileImprovements.json b/jsons/TileImprovements.json
index f25d0d0..e7e9310 100644
--- a/jsons/TileImprovements.json
+++ b/jsons/TileImprovements.json
@@ -113,6 +113,7 @@
 		"turnsToBuild": 10,
 		"techRequired": "Mathematics",
 		"uniques": [
+			"Unbuildable <on foreign continents>",
 	        "Can be built outside your borders",
 			"Tile provides yield without assigned population",
 			"Gives a defensive bonus of [25]%"