diff --git a/.gitignore b/.gitignore
index 3315f2e..da9204a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,6 @@ NOTITIES-intern.md
 00-presentatie/notities-begeleider.json
 00-presentatie/presentatie-met-notities.pdf
 00-presentatie/presentatie-workshop-ai-agents.pptx
+
+# Lockbestanden van LibreOffice
+.~lock.*#
diff --git a/00-sessie/.~lock.sessie-agents-en-projecten.pptx# b/00-sessie/.~lock.sessie-agents-en-projecten.pptx#
deleted file mode 100644
index 8aef121..0000000
--- a/00-sessie/.~lock.sessie-agents-en-projecten.pptx#
+++ /dev/null
@@ -1 +0,0 @@
-,guido,tuxedo,22.09.2026 20:08,/home/guido/.local/share/onlyoffice;
\ No newline at end of file