diff --git a/hydro-operator-bkw.json b/hydro-operator-bkw.json
index 6882d67..d945298 100644
--- a/hydro-operator-bkw.json
+++ b/hydro-operator-bkw.json
@@ -7,12 +7,12 @@
     },
     "query": {
         "7": [
-            "(node[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "node[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "way[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "way[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "relation[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "relation[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];)"
+            "(node[\"operator\"~\"BKW\"][\"generator:source\"=\"hydro\"];",
+            "node[\"operator\"~\"BKW\"][\"plant:source\"=\"hydro\"];",
+            "way[\"operator\"~\"BKW\"][\"generator:source\"=\"hydro\"];",
+            "way[\"operator\"~\"BKW\"][\"plant:source\"=\"hydro\"];",
+            "relation[\"operator\"~\"BKW\"][\"generator:source\"=\"hydro\"];",
+            "relation[\"operator\"~\"BKW\"][\"plant:source\"=\"hydro\"];)"
         ]
     }
 }