diff --git a/lang/nl.json b/lang/nl.json
index cad77ca..6046173 100644
--- a/lang/nl.json
+++ b/lang/nl.json
@@ -3,54 +3,54 @@
     "category:agriculture": "Landbouw",
     "category:alternative_amenities": "Voorzieningen",
     "category:alternative_routes": "Alternatieve routes",
-    "category:buildings": "",
-    "category:buildings-entrances": "",
+    "category:buildings": "Gebouwen",
+    "category:buildings-entrances": "Toegangen",
     "category:buildings-figure-ground": "",
-    "category:buildings-height": "",
-    "category:buildings-start_date": "",
-    "category:buildings-type": "",
+    "category:buildings-height": "Bouwhoogte",
+    "category:buildings-start_date": "Ouderdom van het gebouw",
+    "category:buildings-type": "Gebouwtypes",
     "category:car_amenities": "Voorzieningen",
     "category:car_furniture": "Straatmeubilair",
-    "category:car_maxspeed": "",
-    "category:car_routes": "",
-    "category:children": "",
-    "category:coal": "",
+    "category:car_maxspeed": "Snelheidslimiet",
+    "category:car_routes": "Autoroutes",
+    "category:children": "Voorzieningen voor kinderen",
+    "category:coal": "Kolen",
     "category:communication": "Communicatie",
     "category:construction": "Bouwterrein",
-    "category:craft": "",
+    "category:craft": "Handwerk",
     "category:culture": "Cultuur",
     "category:culture_religion": "Cultuur",
-    "category:cycle_amenities": "",
-    "category:cycle_routes": "",
+    "category:cycle_amenities": "Voorzieningen",
+    "category:cycle_routes": "Fietsroutes",
     "category:education": "Onderwijs",
     "category:electric_power": "Stroomvoorziening",
     "category:emergency": "Hulpdiensten",
-    "category:energy": "",
+    "category:energy": "Energie",
     "category:financial": "Financieel",
     "category:gastro": "Gastronomie",
-    "category:gastro-smoking": "",
+    "category:gastro-smoking": "Rookvrije gastronomie",
     "category:health": "Gezondheid",
-    "category:hiking_routes": "",
+    "category:hiking_routes": "Wandelroutes",
     "category:historic": "Historisch",
     "category:index": "",
-    "category:infrastructure": "",
+    "category:infrastructure": "Infrastructuur",
     "category:internet": "Internettoegang",
-    "category:law": "",
+    "category:law": "Juridische diensten",
     "category:leisure": "Vrije tijd",
     "category:leisure_sport_shopping": "Vrije tijd, Sport en Winkelen",
-    "category:memorial": "",
+    "category:memorial": "Gedenktekens",
     "category:military": "Militair",
-    "category:mtb-routes": "",
+    "category:mtb-routes": "ATB routes",
     "category:natural": "Natuurlijke Formaties",
-    "category:office": "",
-    "category:oil_gas": "",
-    "category:organisations": "",
+    "category:office": "Kantoren",
+    "category:oil_gas": "Petroleum en aardgas",
+    "category:organisations": "Organisaties",
     "category:other": "Andere",
-    "category:outdoor": "",
+    "category:outdoor": "Buitenactiviteiten",
     "category:phone": "Telefonie",
     "category:places": "Plaatsen",
     "category:places_geo": "Plaatsen",
-    "category:playgrounds": "",
+    "category:playgrounds": "Speeltuin",
     "category:post": "Post",
     "category:power_routes": "",
     "category:pt": "",