diff --git a/scripts/generateLayouts.ts b/scripts/generateLayouts.ts
index c7aa518ec..ff7514063 100644
--- a/scripts/generateLayouts.ts
+++ b/scripts/generateLayouts.ts
@@ -295,13 +295,16 @@ class GenerateLayouts extends Script {
             if (f.properties.type === "vector") {
                 // We also need to whitelist eventual sources
                 let url = f.properties.url
+                urls.push(...(f.properties["connect-src"] ?? []))
                 if (url.startsWith("pmtiles://")) {
                     url = url.substring("pmtiles://".length)
                 }
+                if (url.endsWith(".pmtiles")) {
+                    continue
+                }
                 const styleSpec = await Utils.downloadJsonCached(url, 1000 * 120, {
                     Origin: "https://mapcomplete.org",
                 })
-                urls.push(...(f.properties["connect-src"] ?? []))
                 for (const key of Object.keys(styleSpec?.["sources"] ?? {})) {
                     const url = styleSpec["sources"][key].url
                     if (!url) {