diff --git a/README.md b/README.md
index 01cdb8c..013a37e 100644
--- a/README.md
+++ b/README.md
@@ -187,7 +187,7 @@ _ = plt.legend()
 plt.show()
 ```
 
-![line_of_best_fit easy example.png](./figures/line_of_best_fit_easy_example.png)
+![line_of_best_fit_easy_example.png](./figures/line_of_best_fit_easy_example.png)
 
 What about `numpy.linalg.lstsq`? Is it any different?
 ```python
diff --git a/figures/line_of_best_fit easy example.png b/figures/line_of_best_fit_easy_example.png
similarity index 100%
rename from figures/line_of_best_fit easy example.png
rename to figures/line_of_best_fit_easy_example.png