diff --git a/.gitignore b/.gitignore
index 9cfda7e..94774bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,4 @@ fp-info-cache
 
 *.DS_Store
 Documentation/~$M SIMM Manual.docx
+ROMSIMM8MB.4402B/Documentation/Thumbs.db