diff --git a/02_Presentation/robotics/tendon/tendon.md b/02_Presentation/robotics/tendon/tendon.md
index 332a1d8196a09b11181e8da280289c73fbfaf379..95d1f0a89e7e3e41d71eb2d8d0d4892dacbc5068 100644
--- a/02_Presentation/robotics/tendon/tendon.md
+++ b/02_Presentation/robotics/tendon/tendon.md
@@ -34,7 +34,7 @@ OpenCV setup:
 
 Results after tuning the parameters:
 
-<img src="./val1.PNG" width="75%" /><br/>
+<img src="./val1.png" width="75%" /><br/>
 
 
 ---