diff --git a/src/mod/applications/mod_conference/mod_conference.2013.vcxproj b/src/mod/applications/mod_conference/mod_conference.2013.vcxproj
index 0e75fb3745..07723c6711 100644
--- a/src/mod/applications/mod_conference/mod_conference.2013.vcxproj
+++ b/src/mod/applications/mod_conference/mod_conference.2013.vcxproj
@@ -71,18 +71,22 @@
NativeMinimumRules.ruleset
false
+ $(VC_IncludePath);$(WindowsSDK_IncludePath);$(VC_IncludePath);$(WindowsSDK_IncludePath);$(ProjectDir)
NativeMinimumRules.ruleset
false
+ $(VC_IncludePath);$(WindowsSDK_IncludePath);$(VC_IncludePath);$(WindowsSDK_IncludePath);$(ProjectDir)
NativeMinimumRules.ruleset
false
+ $(VC_IncludePath);$(WindowsSDK_IncludePath);$(VC_IncludePath);$(WindowsSDK_IncludePath);$(ProjectDir)
NativeMinimumRules.ruleset
false
+ $(VC_IncludePath);$(WindowsSDK_IncludePath);$(VC_IncludePath);$(WindowsSDK_IncludePath);$(ProjectDir)