diff --git a/marginalia_nu/src/main/java/nu/marginalia/wmsa/edge/converting/ConverterMain.java b/marginalia_nu/src/main/java/nu/marginalia/wmsa/edge/converting/ConverterMain.java
index 61ff0b00..973554d2 100644
--- a/marginalia_nu/src/main/java/nu/marginalia/wmsa/edge/converting/ConverterMain.java
+++ b/marginalia_nu/src/main/java/nu/marginalia/wmsa/edge/converting/ConverterMain.java
@@ -1,18 +1,19 @@
 package nu.marginalia.wmsa.edge.converting;
 
-import com.google.gson.*;
+import com.google.common.base.Strings;
+import com.google.gson.Gson;
 import com.google.inject.Guice;
 import com.google.inject.Inject;
 import com.google.inject.Injector;
+import nu.marginalia.util.ParallelPipe;
 import nu.marginalia.wmsa.edge.converting.interpreter.Instruction;
 import nu.marginalia.wmsa.edge.converting.processor.DomainProcessor;
 import nu.marginalia.wmsa.edge.converting.processor.InstructionsCompiler;
 import nu.marginalia.wmsa.edge.crawling.CrawlPlanLoader;
 import nu.marginalia.wmsa.edge.crawling.CrawledDomainReader;
-import nu.marginalia.wmsa.edge.crawling.WorkLog;
 import nu.marginalia.wmsa.edge.crawling.CrawlerSpecificationLoader;
+import nu.marginalia.wmsa.edge.crawling.WorkLog;
 import nu.marginalia.wmsa.edge.crawling.model.CrawledDomain;
-import nu.marginalia.util.ParallelPipe;
 import nu.marginalia.wmsa.edge.model.EdgeCrawlPlan;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -96,6 +97,10 @@ public class ConverterMain {
 
         domainToId.forEach((domain, id) -> {
             String fileName = idToFileName.get(id);
+
+            if (Strings.isNullOrEmpty(fileName))
+                return;
+
             Path dest = plan.getCrawledFilePath(fileName);
 
             logger.info("{} - {} - {}", domain, id, dest);