diff --git a/forecasting_prophet/prophet_listener.py b/forecasting_prophet/prophet_listener.py
index 395df17f25727b8195fdd9d36e7478c60d02c0c5..2370d556740b648d723da7b9748f6241011bc15c 100644
--- a/forecasting_prophet/prophet_listener.py
+++ b/forecasting_prophet/prophet_listener.py
@@ -141,7 +141,7 @@ class Prophet(morphemic.handler.ModelHandler,messaging.listener.MorphemicListene
         
         while (not os.path.isfile(data_file_path)):
             logging.debug("Waiting for dataset to be loaded")
-    	    sleep(30)
+            sleep(30)
             dataset_preprocessor.prepare_csv()
         
         for r in body: