diff --git a/services/importer/lib/importer/runner.rb b/services/importer/lib/importer/runner.rb
index 2f0a141078..c2ef51acc3 100644
--- a/services/importer/lib/importer/runner.rb
+++ b/services/importer/lib/importer/runner.rb
@@ -249,7 +249,7 @@ module CartoDB
           @importer_stats.timing('download') do
             @downloader.run(available_quota)
 
-            if @downloader.datasource.empty?
+            if @downloader.datasource && @downloader.datasource.empty?
               self.success = true
               return
             end