diff --git a/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template b/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
index 449383c0d6f..4125d712acb 100644
--- a/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
+++ b/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
@@ -26,6 +26,8 @@
 
   cd /var/local/git/grpc-dotnet
   ./build/get-dotnet.sh
+  export PATH="$HOME/.dotnet/:$PATH"
+  
   ./build/get-grpc.sh
 
   cd testassets/InteropTestsWebsite
diff --git a/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
index ed82440ba3c..444aec169a1 100644
--- a/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
@@ -24,6 +24,8 @@ cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc-dotnet
 ./build/get-dotnet.sh
+export PATH="$HOME/.dotnet/:$PATH"
+
 ./build/get-grpc.sh
 
 cd testassets/InteropTestsWebsite