diff --git a/scripts/_common.sh b/scripts/_common.sh
index 944a65e..1738931 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -8,6 +8,18 @@
 # PERSONAL HELPERS
 #=================================================
 
+_set_BasePathOverride() {
+    if [[ "$path" == "/" ]]; then
+        path_or_null=null
+    else
+        path_or_null="\"$path\""
+    fi
+
+    jq ".BasePathOverride = $path_or_null" "$install_dir/.config/Jackett/ServerConfig.json" \
+        > "$install_dir/.config/Jackett/ServerConfig.json.tmp"
+    mv "$install_dir/.config/Jackett/ServerConfig.json.tmp" "$install_dir/.config/Jackett/ServerConfig.json"
+}
+
 #=================================================
 # EXPERIMENTAL HELPERS
 #=================================================
diff --git a/scripts/change_url b/scripts/change_url
index 5d07d15..988ddb3 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -28,9 +28,7 @@ ynh_change_url_nginx_config
 
 # Change the path in the NGINX config file
 if [ "$change_path" -eq 1 ]; then
-	jq ".BasePathOverride = \"$path\"" "$install_dir/.config/Jackett/ServerConfig.json" \
-		> "$install_dir/.config/Jackett/ServerConfig.json.tmp"
-	mv "$install_dir/.config/Jackett/ServerConfig.json.tmp" "$install_dir/.config/Jackett/ServerConfig.json"
+    _set_BasePathOverride
 fi
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index 8c78155..a7f55e4 100755
--- a/scripts/install
+++ b/scripts/install
@@ -45,9 +45,7 @@ ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd" -
 # Start a systemd service
 ynh_systemd_action --service_name="$app" --action="stop" --log_path="systemd"
 
-jq ".BasePathOverride = \"$path\"" "$install_dir/.config/Jackett/ServerConfig.json" \
-    > "$install_dir/.config/Jackett/ServerConfig.json.tmp"
-mv "$install_dir/.config/Jackett/ServerConfig.json.tmp" "$install_dir/.config/Jackett/ServerConfig.json"
+_set_BasePathOverride
 
 #=================================================
 # START SYSTEMD SERVICE
diff --git a/scripts/upgrade b/scripts/upgrade
index c5aabba..6a37e5a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -27,11 +27,13 @@ ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app
 ynh_script_progression --message="Upgrading source files..."
 
 # Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source --dest_dir="$install_dir" --full_replace=0
+ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep=".config"
 
 chmod -R o-rwx "$install_dir"
 chmod -R "$app:" "$install_dir"
 
+_set_BasePathOverride
+
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS
 #=================================================