diff --git a/how-to-use-azureml/work-with-data/dataprep/data/map_func.py b/how-to-use-azureml/work-with-data/dataprep/data/map_func.py
deleted file mode 100644
index 7b97a8d1..00000000
--- a/how-to-use-azureml/work-with-data/dataprep/data/map_func.py
+++ /dev/null
@@ -1,4 +0,0 @@
-def transform(df, index):
-    df['Latitude'].fillna('0', inplace=True)
-    df['Longitude'].fillna('0', inplace=True)
-    return df