diff --git a/src/Build/NuGet.targets b/src/Build/NuGet.targets
index 3f8c37b22..ff79da5b4 100644
--- a/src/Build/NuGet.targets
+++ b/src/Build/NuGet.targets
@@ -27,12 +27,12 @@
 
     <PropertyGroup Condition=" '$(OS)' == 'Windows_NT'">
         <!-- Windows specific commands -->
-        <NuGetToolsPath>$([System.IO.Path]::Combine($(SolutionDir), ".nuget"))</NuGetToolsPath>
+        <NuGetToolsPath Condition="'$(NuGetToolsPath)' == ''">$([System.IO.Path]::Combine($(SolutionDir), ".nuget"))</NuGetToolsPath>
     </PropertyGroup>
 
     <PropertyGroup Condition=" '$(OS)' != 'Windows_NT'">
         <!-- We need to launch nuget.exe with the mono command if we're not on windows -->
-        <NuGetToolsPath>$(SolutionDir).nuget</NuGetToolsPath>
+        <NuGetToolsPath Condition="'$(NuGetToolsPath)' == ''">$(SolutionDir).nuget</NuGetToolsPath>
     </PropertyGroup>
 
     <PropertyGroup>