diff --git a/data/hooks/conf_regen/01-yunohost b/data/hooks/conf_regen/01-yunohost
index 02f191c29..f699f105c 100755
--- a/data/hooks/conf_regen/01-yunohost
+++ b/data/hooks/conf_regen/01-yunohost
@@ -55,12 +55,12 @@ do_pre_regen() {
   fi
 
   # add cron job for diagnosis to be ran at 7h and 19h + a random delay between
-  # 0 and 10min, meant to avoid every instances running their diagnosis at
+  # 0 and 20min, meant to avoid every instances running their diagnosis at
   # exactly the same time, which may overload the diagnosis server.
   mkdir -p $pending_dir/etc/cron.d/
   cat > $pending_dir/etc/cron.d/yunohost-diagnosis << EOF
 SHELL=/bin/bash
-0 7,19 * * * root : YunoHost Automatic Diagnosis; sleep \$((RANDOM\\%600)); yunohost diagnosis run --email > /dev/null 2>/dev/null || echo "Running the automatic diagnosis failed miserably"
+0 7,19 * * * root : YunoHost Automatic Diagnosis; sleep \$((RANDOM\\%1200)); yunohost diagnosis run --email > /dev/null 2>/dev/null || echo "Running the automatic diagnosis failed miserably"
 EOF
 
 }