diff --git a/BizHawk.sln b/BizHawk.sln
index 7caae5d9e1..41fd550187 100644
--- a/BizHawk.sln
+++ b/BizHawk.sln
@@ -1,5 +1,5 @@
 
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 11.00
 # Visual Studio 2010
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BizHawk.Emulation", "BizHawk.Emulation\BizHawk.Emulation.csproj", "{197D4314-8A9F-49BA-977D-54ACEFAEB6BA}"
 EndProject