diff --git a/docs/launcher/README.md b/docs/launcher/README.md
index d5b95d2..7b7ab64 100644
--- a/docs/launcher/README.md
+++ b/docs/launcher/README.md
@@ -20,7 +20,7 @@ When starting the program, the launcher window pops, prompting you to enter your
 
 The launcher code is entirely comprised within the `launcher` package. There are two classes: `launcher.Launcher` and `launcher.Settings`.
 
-![UML Class Diagram](class_diagram.png)
+![UML Class Diagram](class-diagram.png)
 
 ### launcher.Launcher