diff --git a/aegisub/build/msbuild/hunspell/hunspell.vcxproj b/aegisub/build/msbuild/hunspell/hunspell.vcxproj
index f71d7ecc4..6aede5172 100644
--- a/aegisub/build/msbuild/hunspell/hunspell.vcxproj
+++ b/aegisub/build/msbuild/hunspell/hunspell.vcxproj
@@ -46,7 +46,7 @@
     <Import Project="$(MSBuildThisFileDirectory)..\standard-outdirs.props" Label="Standard output directories" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros">
-    <SrcDir>$(AegisubContribBase)hunspell\src\</SrcDir>
+    <SrcDir>..\..\..\..\contrib\hunspell\src\</SrcDir>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
diff --git a/aegisub/build/msbuild/libiconv/libiconv.vcxproj b/aegisub/build/msbuild/libiconv/libiconv.vcxproj
index 4d8b657ba..89f5056c7 100644
--- a/aegisub/build/msbuild/libiconv/libiconv.vcxproj
+++ b/aegisub/build/msbuild/libiconv/libiconv.vcxproj
@@ -44,7 +44,7 @@
     <Import Project="$(MSBuildThisFileDirectory)..\standard-outdirs.props" Label="Standard output directories" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros">
-    <SrcDir>$(AegisubContribBase)iconv\</SrcDir>
+    <SrcDir>..\..\..\..\contrib\iconv\</SrcDir>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
diff --git a/aegisub/build/msbuild/lua51/lua51.vcxproj b/aegisub/build/msbuild/lua51/lua51.vcxproj
index efd8c520d..6b9dee91e 100644
--- a/aegisub/build/msbuild/lua51/lua51.vcxproj
+++ b/aegisub/build/msbuild/lua51/lua51.vcxproj
@@ -46,7 +46,7 @@
     <Import Project="$(MSBuildThisFileDirectory)..\standard-outdirs.props" Label="Standard output directories" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros">
-    <SrcDir>$(AegisubContribBase)lua51\src\</SrcDir>
+	<SrcDir>..\..\..\..\contrib\lua51\src\</SrcDir>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>