diff --git a/.gitignore b/.gitignore
index c905ab4a..7f4be156 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,6 +49,7 @@ perf.data*
 *~
 # Visual Studio cruft
 *.vcxproj.user
+*.csproj.user
 binaries/*Debug
 binaries/*Release
 build/vs2010/ipch