diff --git a/export.sh b/export.sh
index 2ad39a004503f226857913cbd51b8f1aef2ba54e..efb901b4c40ff49e77a017543fa8c11ea50bdab2 100755
--- a/export.sh
+++ b/export.sh
@@ -4,9 +4,10 @@ if [ -z ${RUST_CLASS_ROOT+x} ]; then echo "RUST_CLASS_ROOT is unset"; else echo
 if [ -z ${SL_CLASS_ROOT+x} ]; then echo "SL_CLASS_ROOT is unset"; else echo "var is set to '$SL_CLASS_ROOT'"; fi
 if [ -z ${MTI_CLASS_ROOT+x} ]; then echo "MTI_CLASS_ROOT is unset"; else echo "var is set to '$MTI_CLASS_ROOT'"; fi
 if [ -z ${RUST_EXERCICES_ROOT+x} ]; then echo "RUST_EXERCICES_ROOT is unset"; else echo "var is set to '$RUST_EXERCICES_ROOT'"; fi
+if [ -z ${CONC_ROOT+x} ]; then echo "CONC_ROOT is unset"; else echo "var is set to '$CONC_ROOT'"; fi
 
 ## declare classes directories
-declare -a arr=("$RUST_CLASS_ROOT" "$SL_CLASS_ROOT" "$MTI_CLASS_ROOT" "$RUST_EXERCICES_ROOT" "$(pwd)")
+declare -a arr=("$RUST_CLASS_ROOT" "$SL_CLASS_ROOT" "$MTI_CLASS_ROOT" "$RUST_EXERCICES_ROOT" "$CONC_ROOT" "$(pwd)")
 
 ## now loop through the above array
 for i in "${arr[@]}"
@@ -24,6 +25,7 @@ rsync -avz index.html malaspinas@129.194.185.180:/www/
 rsync -avz $RUST_CLASS_ROOT/prog_seq malaspinas@129.194.185.180:/www/
 rsync -avz $SL_CLASS_ROOT/sol malaspinas@129.194.185.180:/www/
 rsync -avz $MTI_CLASS_ROOT/mti malaspinas@129.194.185.180:/www/
+rsync -avz $CONC_ROOT/concurrence malaspinas@129.194.185.180:/www/
 
 # docker stop rustclass
 # docker build -t rustclasscont .
diff --git a/index.md b/index.md
index 395cbad7f39b80d2207ca0c3cf36bf519243301d..d909b9e57a1ff88d9d9d82b7a4a38f659dccc559 100644
--- a/index.md
+++ b/index.md
@@ -41,6 +41,7 @@ corrige: false
 # Cours de deuxième année
 
 ## [Mathématiques en technologie de l'information](mti/index.html), [git repo](https://githepia.hesge.ch/orestis.malaspin/math_tech_info), [pdf](mti/cours.pdf)
+## [Programmation concurrente](concurrence/index.html), [git repo](https://githepia.hesge.ch/orestis.malaspin/cours_prog_conc)
 ## [Sciences en orientation logicielle](sol/index.html), [git repo](https://githepia.hesge.ch/orestis.malaspin/sci_log), [pdf](sol/cours.pdf)
 ### [Sciences en orientation logicielle: Travaux pratiques](sol/tp/index.html)