diff --git a/.azure/pipelines/ci.yml b/.azure/pipelines/ci.yml
index c2995aff4a39cd9eddc28d6750889a15cba24cc8..c9870673c0b2c92e38fc30f07b88ea82c76e4417 100644
--- a/.azure/pipelines/ci.yml
+++ b/.azure/pipelines/ci.yml
@@ -295,7 +295,7 @@ stages:
           inputs:
             packageType: sdk
             version: 3.1.x
-            installationPath: $(Build.SourcesDirectory)/dotnet
+            installationPath: $(Build.SourcesDirectory)./dotnet
             workingDirectory: $(Build.SourcesDirectory)
         - powershell: . $(Build.SourcesDirectory)/activate.ps1;
             dotnet tool install BinLogToSln