diff --git a/libsodium.sln b/libsodium.sln
index 8cefef70..3eb92066 100644
--- a/libsodium.sln
+++ b/libsodium.sln
@@ -1,4 +1,6 @@
 
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libsodium", "libsodium.vcxproj", "{A185B162-6CB6-4502-B03F-B56F7699A8D9}"
 EndProject
 Global