diff --git a/src/Microsoft.AspNetCore.Mvc.WebApiCompatShim/Microsoft.AspNetCore.Mvc.WebApiCompatShim.csproj b/src/Microsoft.AspNetCore.Mvc.WebApiCompatShim/Microsoft.AspNetCore.Mvc.WebApiCompatShim.csproj
index 15d6e0c94d..d433dc4daa 100644
--- a/src/Microsoft.AspNetCore.Mvc.WebApiCompatShim/Microsoft.AspNetCore.Mvc.WebApiCompatShim.csproj
+++ b/src/Microsoft.AspNetCore.Mvc.WebApiCompatShim/Microsoft.AspNetCore.Mvc.WebApiCompatShim.csproj
@@ -10,7 +10,8 @@ System.Web.Http.ApiController</Description>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore;aspnetcoremvc;aspnetwebapi</PackageTags>
-    <AssetTargetFallback>$(AssetTargetFallback);portable-net451+win8</AssetTargetFallback>
+    <PackageTargetFallback>$(PackageTargetFallback);portable-net451+win8</PackageTargetFallback>
+    <DisableImplicitAssetTargetFallback>true</DisableImplicitAssetTargetFallback>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Mvc.FunctionalTests/Microsoft.AspNetCore.Mvc.FunctionalTests.csproj b/test/Microsoft.AspNetCore.Mvc.FunctionalTests/Microsoft.AspNetCore.Mvc.FunctionalTests.csproj
index 53171890c3..86ebaa991b 100644
--- a/test/Microsoft.AspNetCore.Mvc.FunctionalTests/Microsoft.AspNetCore.Mvc.FunctionalTests.csproj
+++ b/test/Microsoft.AspNetCore.Mvc.FunctionalTests/Microsoft.AspNetCore.Mvc.FunctionalTests.csproj
@@ -4,7 +4,8 @@
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
     <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
-    <AssetTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(AssetTargetFallback);portable-net451+win8</AssetTargetFallback>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(PackageTargetFallback);portable-net451+win8</PackageTargetFallback>
+    <DisableImplicitAssetTargetFallback>true</DisableImplicitAssetTargetFallback>
 
     <DefineConstants Condition="'$(GenerateBaselines)'=='true'">$(DefineConstants);GENERATE_BASELINES</DefineConstants>
     <DefineConstants>$(DefineConstants);__RemoveThisBitTo__GENERATE_BASELINES</DefineConstants>
diff --git a/test/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest.csproj b/test/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest.csproj
index 456ae4bb53..31c20cff7e 100644
--- a/test/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest.csproj
+++ b/test/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest/Microsoft.AspNetCore.Mvc.WebApiCompatShimTest.csproj
@@ -5,7 +5,8 @@
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.0</TargetFrameworks>
     <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
-    <AssetTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(AssetTargetFallback);portable-net451+win8</AssetTargetFallback>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(PackageTargetFallback);portable-net451+win8</PackageTargetFallback>
+    <DisableImplicitAssetTargetFallback>true</DisableImplicitAssetTargetFallback>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
   </PropertyGroup>
diff --git a/test/WebSites/WebApiCompatShimWebSite/WebApiCompatShimWebSite.csproj b/test/WebSites/WebApiCompatShimWebSite/WebApiCompatShimWebSite.csproj
index 6c11db0468..ea542c51f0 100644
--- a/test/WebSites/WebApiCompatShimWebSite/WebApiCompatShimWebSite.csproj
+++ b/test/WebSites/WebApiCompatShimWebSite/WebApiCompatShimWebSite.csproj
@@ -4,7 +4,8 @@
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
     <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
-    <AssetTargetFallback>$(AssetTargetFallback);portable-net451+win8</AssetTargetFallback>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(PackageTargetFallback);portable-net451+win8</PackageTargetFallback>
+    <DisableImplicitAssetTargetFallback>true</DisableImplicitAssetTargetFallback>
   </PropertyGroup>
 
   <ItemGroup>