diff --git a/miniupnpc/msvc/.gitignore b/miniupnpc/msvc/.gitignore
index 44b8c42..7fc91a6 100644
--- a/miniupnpc/msvc/.gitignore
+++ b/miniupnpc/msvc/.gitignore
@@ -1,4 +1,5 @@
 *.db
+*.opendb
 .vs
 Debug/
 Debug Dll/