diff --git a/KLayout-Python-Module-Prototype.md b/KLayout-Python-Module-Prototype.md
index b937769..5b3ad74 100644
--- a/KLayout-Python-Module-Prototype.md
+++ b/KLayout-Python-Module-Prototype.md
@@ -90,7 +90,7 @@ Future:
 * Automated generation and on-demand extraction of the Qt API for rich Qt version support of the Qt binding API
 * Documentation extraction of the Qt binding API
 
-## Open questions
+