diff --git a/lib/gutdata/models/project_creator.rb b/lib/gutdata/models/project_creator.rb
index 3f399177..f526b3f4 100644
--- a/lib/gutdata/models/project_creator.rb
+++ b/lib/gutdata/models/project_creator.rb
@@ -63,7 +63,7 @@ def migrate_datasets(spec, opts = {})
           if !chunks.nil? && !dry_run
             chunks['updateScript']['maqlDdlChunks'].each do |chunk|
               result = project.execute_maql(chunk)
-              fail 'Creating dataset failed' if result['wTaskStatus']['status'] == 'ERROR'
+              raise result['wTaskStatus']['messages'].to_s if result['wTaskStatus']['status'] == 'ERROR'
             end
           end
           chunks