diff --git a/docs/assignments/week11.md b/docs/assignments/week11.md
index 3aacf7adcd91c4559ffc32c02e0149d7b333f422..b08fb7962067405ea2319629abb5d67a0df416f0 100644
--- a/docs/assignments/week11.md
+++ b/docs/assignments/week11.md
@@ -39,7 +39,7 @@ i have designed a gripper mold to cast sillicon, which can be also used for soft
 
 You can download the mold here
 
-[Gripper](../grip.stl)
+[Gripper](../grip.STL)
 ## Useful links
 
 - [soft Materials for Soft Actuators](https://www.youtube.com/watch?v=1J47difr3oo)