diff --git a/.gitignore b/.gitignore
index a63bc0e..7d38dc5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,7 @@ _autosave-*
 *.tmp
 *-save.pro
 *-save.kicad_pcb
+*.lck
 fp-info-cache
 
 # Netlist files (exported from Eeschema)