diff --git a/.gitattributes b/.gitattributes
index adad3c1..9d05eaf 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,3 @@
-*.kicad_* lockable
+*.kicad_pcb lockable
+*.kicad_sch lockable
+*.kicad_pro lockable