diff --git a/map_machine/doc/collections.py b/map_machine/doc/collections.py
index 770b248..d7100c4 100644
--- a/map_machine/doc/collections.py
+++ b/map_machine/doc/collections.py
@@ -76,6 +76,18 @@ collections = [
             # "choker", "island", "chocked_island", "chocked_table",
         ],
     ),
+    Collection(
+        "Key:crane:type",
+        {"man_made": "crane"},
+        "crane:type",
+        [
+            "gantry_crane",
+            "floor-mounted_crane",
+            "portal_crane",
+            "travel_lift",
+            "tower_crane",
+        ],
+    ),
     Collection(
         "Tag:tower:type=diving",
         {"man_made": "tower", "tower:type": "diving"},