diff --git a/docs/citydb-tool/docker.md b/docs/citydb-tool/docker.md
index e290a7c..da4c4c5 100644
--- a/docs/citydb-tool/docker.md
+++ b/docs/citydb-tool/docker.md
@@ -1,6 +1,5 @@
 ---
 # title: Docker
-subtitle: CityDB tool Docker documentation
 description: CityDB tool Docker documentation and usage examples
 icon: fontawesome/brands/docker
 status: wip