diff --git a/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/PackagingTest.cs b/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/PackagingTest.cs
index 8e4a0b61fbb..321650da910 100644
--- a/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/PackagingTest.cs
+++ b/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/PackagingTest.cs
@@ -214,7 +214,7 @@ public void CheckSignApk ([Values(true, false)] bool useApkSigner)
 			};
 			if (useApkSigner) {
 				proj.SetProperty ("AndroidUseApkSigner", "true");
-				proj.SetProperty ("AndroidBuildToolsVersion", "26.0.1");
+				proj.SetProperty ("AndroidSdkBuildToolsVersion", "26.0.1");
 			} else {
 				proj.RemoveProperty ("AndroidUseApkSigner");
 			}