diff --git a/makepkg b/makepkg
index 6a36f0b..420c975 100755
--- a/makepkg
+++ b/makepkg
@@ -21,7 +21,7 @@ else
     VERSION=$CURRENT_BRANCH
     if [ ! "$CURRENT_SUBBR" = 'master' ]; then
         echo "impossible de déterminer la branche"
-	exit 1
+        exit 1
     fi
     ORI_BR=$VERSION/master
 fi
@@ -38,6 +38,17 @@ echo "attention version $VERSION ($DEPOT)"
 DIST_BR=dist/eole/$VERSION/master
 git push
 git checkout $DIST_BR
+if [ $CURRENT_BRANCH = 'master' ]; then
+    if grep Zgzip debian/rules  -q Zgzip debian/rules; then
+        echo "compilable en 2.9"
+    else
+        echo "NON COMPILABLE EN 2.9"
+        echo "Voir des exemples de modifications ici : https://dev-eole.ac-dijon.fr/issues/33643#note-6"
+        git checkout $ORI_BR
+        git branch -d $DIST_BR
+        exit 1
+    fi
+fi
 git pull --rebase
 git merge $ORI_BR
 git push