diff --git a/data/json/field_type.json b/data/json/field_type.json
index 0abab4410196b..4ff7a52b4451e 100644
--- a/data/json/field_type.json
+++ b/data/json/field_type.json
@@ -548,6 +548,7 @@
     "priority": 8,
     "half_life": "2 minutes",
     "phase": "gas",
+    "has_fume": true,
     "accelerated_decay": true,
     "display_items": false,
     "display_field": true,