diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5aaeddb..e52e51c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Fixed invalid examples
+- JSON Schema checks `label:assets` in links
 
 ## [v1.0.0] - 2021-03-8
 
diff --git a/examples/multidataset/spacenet-buildings/AOI_2_Vegas_img2636.json b/examples/multidataset/spacenet-buildings/AOI_2_Vegas_img2636.json
index f8d2de7..53f851f 100644
--- a/examples/multidataset/spacenet-buildings/AOI_2_Vegas_img2636.json
+++ b/examples/multidataset/spacenet-buildings/AOI_2_Vegas_img2636.json
@@ -99,7 +99,9 @@
       "rel": "source",
       "href": "https://spacenet-dataset.s3.amazonaws.com/spacenet/SN2_buildings/train/AOI_2_Vegas/PS-RGB/SN2_buildings_train_AOI_2_Vegas_PS-RGB_img2636.tif",
       "title": "The source imagery these building labels were derived from",
-      "label:assets": "OBJECTID_1"
+      "label:assets": [
+        "OBJECTID_1"
+      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/examples/multidataset/spacenet-buildings/AOI_3_Paris_img1648.json b/examples/multidataset/spacenet-buildings/AOI_3_Paris_img1648.json
index 9c29791..f24fec6 100644
--- a/examples/multidataset/spacenet-buildings/AOI_3_Paris_img1648.json
+++ b/examples/multidataset/spacenet-buildings/AOI_3_Paris_img1648.json
@@ -99,7 +99,9 @@
       "rel": "source",
       "href": "https://spacenet-dataset.s3.amazonaws.com/spacenet/SN2_buildings/train/AOI_3_Paris/PS-RGB/SN2_buildings_train_AOI_3_Paris_PS-RGB_img1648.tif",
       "title": "The source imagery these building labels were derived from",
-      "label:assets": "OBJECTID_1"
+      "label:assets": [
+        "OBJECTID_1"
+      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/examples/multidataset/spacenet-buildings/AOI_4_Shanghai_img3344.json b/examples/multidataset/spacenet-buildings/AOI_4_Shanghai_img3344.json
index c7b38cf..0a2f2a3 100644
--- a/examples/multidataset/spacenet-buildings/AOI_4_Shanghai_img3344.json
+++ b/examples/multidataset/spacenet-buildings/AOI_4_Shanghai_img3344.json
@@ -99,7 +99,9 @@
       "rel": "source",
       "href": "https://spacenet-dataset.s3.amazonaws.com/spacenet/SN2_buildings/train/AOI_4_Shanghai/PS-RGB/SN2_buildings_train_AOI_4_Shanghai_PS-RGB_img3344.tif",
       "title": "The source imagery these building labels were derived from",
-      "label:assets": "OBJECTID_1"
+      "label:assets": [
+        "OBJECTID_1"
+      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/examples/multidataset/zanzibar/znz001.json b/examples/multidataset/zanzibar/znz001.json
index 04cd42a..4c99e06 100644
--- a/examples/multidataset/zanzibar/znz001.json
+++ b/examples/multidataset/zanzibar/znz001.json
@@ -113,7 +113,9 @@
       "rel": "source",
       "href": "https://oin-hotosm.s3.amazonaws.com/5afeda152b6a08001185f11a/0/5afeda152b6a08001185f11b.tif",
       "title": "The source imagery these building labels were derived from",
-      "label:assets": "building"
+      "label:assets": [
+        "building"
+      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/examples/multidataset/zanzibar/znz029.json b/examples/multidataset/zanzibar/znz029.json
index ea6e5d4..011701c 100644
--- a/examples/multidataset/zanzibar/znz029.json
+++ b/examples/multidataset/zanzibar/znz029.json
@@ -113,7 +113,9 @@
       "rel": "source",
       "href": "https://oin-hotosm.s3.amazonaws.com/5ae242fd0b093000130afd38/0/5ae242fd0b093000130afd39.tif",
       "title": "The source imagery these building labels were derived from",
-      "label:assets": "building"
+      "label:assets": [
+        "building"
+      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/examples/spacenet-roads/roads_item.json b/examples/spacenet-roads/roads_item.json
index 7f9cffe..ca51e2f 100644
--- a/examples/spacenet-roads/roads_item.json
+++ b/examples/spacenet-roads/roads_item.json
@@ -156,7 +156,9 @@
       "href": "roads_source.json",
       "rel": "source",
       "title": "The source imagery these road labels were derived from",
-      "label:assets": "road_labels"
+      "label:assets": [
+        "road_labels"
+      ]
     }
   ],
   "assets": {
diff --git a/json-schema/schema.json b/json-schema/schema.json
index ec79e1f..1184716 100644
--- a/json-schema/schema.json
+++ b/json-schema/schema.json
@@ -12,6 +12,7 @@
           "required": [
             "type",
             "properties",
+            "links",
             "assets"
           ],
           "properties": {
@@ -33,6 +34,12 @@
                 }
               ]
             },
+            "links": {
+              "type": "array",
+              "items": {
+                "$ref": "#/definitions/link_fields"
+              }
+            },
             "assets": {
               "type": "object",
               "additionalProperties": {
@@ -73,11 +80,7 @@
           }
         },
         {
-          "$comment": "Remove this and the following object if this is not an extension to a Collection.",
           "$ref": "#/definitions/stac_extensions"
-        },
-        {
-          "$ref": "#/definitions/fields"
         }
       ]
     }
@@ -97,6 +100,21 @@
         }
       }
     },
+    "link_fields": {
+      "type": "object",
+      "properties": {
+        "label:assets": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        }
+      },
+      "patternProperties": {
+        "^(?!label:)": {}
+      },
+      "additionalProperties": false
+    },
     "fields": {
       "type": "object",
       "properties": {
@@ -223,9 +241,7 @@
         }
       },
       "patternProperties": {
-        "^(?!label:)": {
-          "$comment": "Above, change `template` to the prefix of this extension"
-        }
+        "^(?!label:)": {}
       },
       "additionalProperties": false
     }