diff --git a/knowledge-fs/packages/api/src/source-product-workflow-runtime.test.ts b/knowledge-fs/packages/api/src/source-product-workflow-runtime.test.ts
index 43ef58904eb..9f5db153882 100644
--- a/knowledge-fs/packages/api/src/source-product-workflow-runtime.test.ts
+++ b/knowledge-fs/packages/api/src/source-product-workflow-runtime.test.ts
@@ -847,10 +847,7 @@ describe("source-product workflow provider imports", () => {
       },
       inventory: [],
       run: providerRun(source.id, "crawl-import", {
-        selectedSourceUrls: [
-          "https://example.test/selected",
-          "https://example.test/missing",
-        ],
+        selectedSourceUrls: ["https://example.test/selected", "https://example.test/missing"],
       }),
       source,
       websiteCrawl: {
diff --git a/knowledge-fs/packages/api/src/source-product-workflow-runtime.ts b/knowledge-fs/packages/api/src/source-product-workflow-runtime.ts
index a890d9420fb..85bda991450 100644
--- a/knowledge-fs/packages/api/src/source-product-workflow-runtime.ts
+++ b/knowledge-fs/packages/api/src/source-product-workflow-runtime.ts
@@ -793,12 +793,14 @@ async function processSelectedCrawlImport(
       state: "importing",
     }),
   );
-  await importCrawlPages(
-    input,
-    execution,
-    source,
-    [...requestedUrls].map((sourceUrl) => matched.get(sourceUrl)!),
-  );
+  const selectedPages = [...requestedUrls].map((sourceUrl) => {
+    const page = matched.get(sourceUrl);
+    if (!page) {
+      throw runtimeError("SOURCE_CRAWL_PAGE_NOT_FOUND", "Selected crawl page is unavailable");
+    }
+    return page;
+  });
+  await importCrawlPages(input, execution, source, selectedPages);
 }
 
 async function importCrawlPages(