diff --git a/scripts/generateLayerOverview.ts b/scripts/generateLayerOverview.ts
index a1492af390..c1949be31d 100644
--- a/scripts/generateLayerOverview.ts
+++ b/scripts/generateLayerOverview.ts
@@ -203,6 +203,9 @@ class LayerBuilder extends Conversion<object, Map<string, LayerConfigJson>> {
         context = context.inOperation("building Layer " + id).enters("layer", id)
 
         const config = this._layerConfigJsons.get(id)
+        if (config.id !== id) {
+            context.err("Invalid ID: expected", id, "but got", id)
+        }
         const prepped = this.prepareLayer.convert(config, context)
         this._loadedIds.add(id)
         this._desugaringState.sharedLayers.set(id, prepped)
@@ -760,11 +763,15 @@ class LayerOverviewUtils extends Script {
             ScriptUtils.erasableLog(
                 `Parsing layerConfig ${i + 1}/${allPaths.length}: ${path}                   `
             )
+            const expectedId = path.match(/.*\/([a-z_0-9]+).json/)[1]
             try {
                 const data = JSON.parse(readFileSync(path, "utf8"))
                 results.push(data)
+                if (data.id !== expectedId) {
+                    throw "Wrong ID or location for file " + path + "; expected " + expectedId + " but got " + data.id
+                }
             } catch (e) {
-                throw "Could not parse layer file " + path
+                throw "Could not parse layer file " + path + " due to " + e
             }
         }