diff --git a/index.md b/index.md
index 9b2f87b8fb205120e181e217cc05bfaf0549f7bd..8865ed1c77ecad52900b5fc982eea3c48835b7db 100644
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@@ -116,6 +116,8 @@ La chaîne *mixer.com* de mes cours se trouve sur <https://www.mixer.com/omhepia
 
 ## TP3: Structures de données concurrentes [PDF](tp_concurrence/synchro.pdf), [HTML](tp_concurrence/synchro.html)
 
+## TP4: File et workflow [PDF](tp_concurrence/file_workflow.pdf), [HTML](tp_concurrence/file_workflow.html)
+
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