diff --git a/.gitignore b/.gitignore
index 13ba204cc66..19f057e8a1b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -192,6 +192,9 @@ Temporary Items
 /_maps/**/backup/
 /_maps/templates.dm
 
+#dmm palette file. You really should be using StrongDMM instead.
+*.dmm-pal
+
 #dmdoc default folder
 /dmdoc