1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/src/crypto.csproj b/crypto/src/crypto.csproj
index bb3de0c9c..7a246c171 100644
--- a/crypto/src/crypto.csproj
+++ b/crypto/src/crypto.csproj
@@ -35,7 +35,7 @@
     <DefineConstants>$(DefineConstants);LIB</DefineConstants>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(TargetFramework)' == 'portable-net4+sl5+wp8+win8+wpa81' ">
-    <DefineConstants>$(DefineConstants);PORTABLE;NO_THREADS</DefineConstants>
+    <DefineConstants>$(DefineConstants);PORTABLE;NO_THREADS;LEGACY_PCL</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="..\bzip2\src\**\*.cs" LinkBase="bzip2" />