diff --git a/sonarr/rootfs/etc/services.d/nginx/run b/sonarr/rootfs/etc/services.d/nginx/run
index e74dd8620..c8a6ad57f 100644
--- a/sonarr/rootfs/etc/services.d/nginx/run
+++ b/sonarr/rootfs/etc/services.d/nginx/run
@@ -10,7 +10,7 @@ CONFIG_LOCATION=/config/addons_config/sonarr/config.xml
 if bashio::config.has_value 'CONFIG_LOCATION'; then
   CONFIG_LOCATION="$(bashio::config 'CONFIG_LOCATION')"
   # Modify if it is a base directory
-  if [ -f "$CONFIG_LOCATION" ]; then CONFIG_LOCATION="$(dirname $CONFIG_LOCATION)/config.xml"; fi
+  if [[ "$CONFIG_LOCATION" == *.* ]]; then CONFIG_LOCATION="$(dirname $CONFIG_LOCATION)/config.xml"; fi
 fi
 
 if ! grep -q "<UrlBase>/sonarr</UrlBase>" "$CONFIG_LOCATION"; then