diff --git a/VisualStudio.gitignore b/VisualStudio.gitignore
index a752eacc..940794e6 100644
--- a/VisualStudio.gitignore
+++ b/VisualStudio.gitignore
@@ -219,6 +219,7 @@ UpgradeLog*.htm
 # SQL Server files
 *.mdf
 *.ldf
+*.ndf
 
 # Business Intelligence projects
 *.rdl.data
@@ -284,4 +285,4 @@ __pycache__/
 *.btp.cs
 *.btm.cs
 *.odx.cs
-*.xsd.cs
\ No newline at end of file
+*.xsd.cs