diff --git a/loterre-resolvers/v1/2XK/identify.ini b/loterre-resolvers/v1/2XK/identify.ini
index aac46d0..d4c3140 100644
--- a/loterre-resolvers/v1/2XK/identify.ini
+++ b/loterre-resolvers/v1/2XK/identify.ini
@@ -72,7 +72,7 @@
 value = get('value.geo$long')
 
 path = value.codeUniteCNRS
-value =  get('value.wdt$P4550')
+value =  get('value.wdt$P4550'), []).castArray().map(item => (item.$t ? item.$t : item))
 
 path = value.libelleOrigine
 value = get('value.wdt$P1705')
@@ -114,7 +114,7 @@
 value = get('value.wdt$P1705')
 
 path = value.tutellePrincipale
-value = get('value.inist$tutellePrincipale', []).castArray().map(item => (item.$t ? item.$t : item))
+value = get('value.inist$tutellePrincipale' []).castArray().map(item => (item.$t ? item.$t : item))
 
 path = value.tutelleSecondaire
 value = get('value.inist$tutelleSecondaire', []).castArray().map(item => (item.$t ? item.$t : item))
@@ -155,5 +155,16 @@
 path = value.homepage
 value = get('value.foaf$homepage', []).castArray().map(item => (item.$t ? item.$t : item))
 
+# Prevent keys from containing dot path notation or start with a dollar character (which is forbidden by nodeJS mongoDB driver)
+[OBJFlatten]
+separator = fix('.')
+safe = false
+[exchange]
+value = self().mapKeys((value, key) => key.replace(/\.\$/g, '.xml$'))
+[OBJFlatten]
+separator = fix('.')
+reverse = true
+safe = false
+
 [dump]
 indent = env('indent', false)