diff --git a/flareon4/challenge4.md b/flareon4/challenge4.md
index 8f785c2..5f5c155 100644
--- a/flareon4/challenge4.md
+++ b/flareon4/challenge4.md
@@ -18,7 +18,7 @@ The first part of the start function is the biggest hint. It is looking for the
 
 ## Structure ##
 
-![alt text](https://securedorg.github.io/flareon4/images/ch4_diagram.png "diagram")
+![alt text](https://securedorg.github.io/flareon4/images/ch4_diagram.png "ch4 diagram")
 
 The binary is actually performing typical malware-like behaviors that I see all the time:
 
@@ -92,4 +92,4 @@ for i in range(len(string)):
 print answer
 ```
 
-[Challenge 3 <- Back](https://securedorg.github.io/flareon4/challenge3) | [Next -> Challenge 5](https://securedorg.github.io/flareon4/challenge5)
\ No newline at end of file
+[Challenge 3 <- Back](https://securedorg.github.io/flareon4/challenge3) | [Next -> Challenge 5](https://securedorg.github.io/flareon4/challenge5)