diff --git a/plugins/techdocs-backend/.gitignore b/plugins/techdocs-backend/.gitignore
index e45a1be0e2..b1befabea2 100644
--- a/plugins/techdocs-backend/.gitignore
+++ b/plugins/techdocs-backend/.gitignore
@@ -1,4 +1,4 @@
 static
 
 # Folder generated by plantuml containing jdk font config
-**/?/
+**/\?/