diff --git a/src/Compilers/Server/PortableServer/PortableServer.csproj b/src/Compilers/Server/PortableServer/PortableServer.csproj
index ff030d728141b073d3318ebf2384246a27ac2afc..90cf76414e3da691272795c0e4052156b146709f 100644
--- a/src/Compilers/Server/PortableServer/PortableServer.csproj
+++ b/src/Compilers/Server/PortableServer/PortableServer.csproj
@@ -5,7 +5,7 @@
   <PropertyGroup>
     <Platform Condition="'$(Platform)' == ''">x64</Platform>
     <PlatformTarget>AnyCPU</PlatformTarget>
-    <Platforms>x64</Platforms>
+    <Platforms>AnyCPU;x64</Platforms>
     <RuntimeIdentifier>x64</RuntimeIdentifier>
     <ProjectGuid>{06B26DCB-7A12-48EF-AE50-708593ABD05F}</ProjectGuid>
     <OutputType>Exe</OutputType>