diff --git a/src/energy_data_project/T08_WorldCities.py b/src/energy_data_project/T08_WorldCities.py
index 08f34aa..c4938df 100644
--- a/src/energy_data_project/T08_WorldCities.py
+++ b/src/energy_data_project/T08_WorldCities.py
@@ -13,6 +13,7 @@ def get_population_of_country(df, country):
     :raises: KeyError if column is missing
     """
     cities = df[df["country"] == country]
+    print("cities")
     pop = cities["population"].sum()
     return pop