diff --git a/.gitignore b/.gitignore
index ed8368a..b1258f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,6 +41,7 @@ nbdist/
 *.log
 *.xml.versionsBackup
 *.swp
+*.lck
 
 !*/build/*.java
 !*/build/*.html