diff --git a/schemas/v0/groundwaterlevel.things.json b/schemas/v0/groundwaterlevel.things.json
index 6f208c2..c8460d6 100644
--- a/schemas/v0/groundwaterlevel.things.json
+++ b/schemas/v0/groundwaterlevel.things.json
@@ -66,7 +66,7 @@
 					"type": "string",
 					"enum": [
 						"abandoned",
-						"active_pumping well",
+						"active_pumping_well",
 						"destroyed_exists_but_not_usable",
 						"inactive_exists_but_not_used",
 						"unknown"