diff --git a/contrib/plotting-visualization/matplotlib_pie_charts.md b/contrib/plotting-visualization/matplotlib-pie-charts.md
similarity index 99%
rename from contrib/plotting-visualization/matplotlib_pie_charts.md
rename to contrib/plotting-visualization/matplotlib-pie-charts.md
index 0a1e56d..66f2aa1 100644
--- a/contrib/plotting-visualization/matplotlib_pie_charts.md
+++ b/contrib/plotting-visualization/matplotlib-pie-charts.md
@@ -230,4 +230,4 @@ plt.legend(labels, title="Flowers")
 # Show plot
 plt.show()
 ```
-![Legends](images/legends.png)
\ No newline at end of file
+![Legends](images/legends.png)