diff --git a/create.dockerfile b/create.dockerfile
index 38afd2b..364e931 100644
--- a/create.dockerfile
+++ b/create.dockerfile
@@ -8,7 +8,7 @@ RUN pip install numpy
 RUN pip install scikit-learn
 RUN pip install pandas
 
-RUN echo ls -a
+RUN echo $(ls -a)
 
 COPY Video_Games_Sales_as_at_22_Dec_2016.csv .
 COPY create-dataset.py .