diff --git a/src/energy_data_project/T08_WorldCities.py b/src/energy_data_project/T08_WorldCities.py
index c4938df..00565d0 100644
--- a/src/energy_data_project/T08_WorldCities.py
+++ b/src/energy_data_project/T08_WorldCities.py
@@ -15,6 +15,7 @@ def get_population_of_country(df, country):
     cities = df[df["country"] == country]
     print("cities")
     pop = cities["population"].sum()
+
     return pop
 
 def get_cities_beyond_latitude(df, lat, north=True):