diff --git a/.gitignore b/.gitignore
index 00ceefe..298cc81 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
 *.kicad_prl
 *.sch-bak
 *~
+*.lck
 _autosave-*
 *.tmp
 *-save.pro