diff --git a/6_unix_processes.md b/6_unix_processes.md
index a3ec43ed698eddc2aa3f210d8751dc1394bf02f5..75c8e4c5ecd2c458a58bc6e88249602543e47e5c 100644
--- a/6_unix_processes.md
+++ b/6_unix_processes.md
@@ -6,7 +6,7 @@ title: Unix Processes
 
 # Unix Processes
 
-[![cc_by_sa](/Users/laurent/Documents/formations/2020_08_UNIX/img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+[![cc_by_sa](./cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
 
 Objective: Understand how process works in GNU/Linux
 
diff --git a/7_streams_and_pipes.md b/7_streams_and_pipes.md
index c93d8a057f181a38cb78a1db0423ca681025b22b..cc8cc0f23c8ddc07499b1efe6d8e33bd83ecc9ca 100644
--- a/7_streams_and_pipes.md
+++ b/7_streams_and_pipes.md
@@ -7,7 +7,7 @@ title: Unix Streams and pipes
 
 # Steams and pipes
 
-[![cc_by_sa](/Users/laurent/Documents/formations/2020_08_UNIX/img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
 
 Objective: Understand function of streams and pipes in Unix systems
 
@@ -141,4 +141,4 @@ Remember that most Unix command process input and output line by line. Which mea
 > - `|` the pipe operator to connect processes
 > - `wget` to download files
 
-[You can head to the next session to apply pipe and stream manipulation.](https://http://perso.ens-lyon.fr/laurent.modolo/unix/8_text_manipulation.html)
\ No newline at end of file
+[You can head to the next session to apply pipe and stream manipulation.](https://http://perso.ens-lyon.fr/laurent.modolo/unix/8_text_manipulation.html)